taxonID	type	description	language	source
5A219B243441473EFCEDFC4D98A216B6.taxon	description	Figs 1 P, 2 P, 3 A – E, 8 A – D, 13 E	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243441473EFCEDFC4D98A216B6.taxon	materials_examined	Diagnosis. In Korea, only X. abiens, X. orientiflorum sp. n. and X. tarda share a light colored abdominal pattern in dark background, by which they can be separated from any other Korean Xylota species: abdominal terga 2 and 3 each with a pair of orange-yellow maculae (Fig. 2 P – S). Among these three species, the shape and size of maculae are species specific, and there is no problem distinguishing one another. Xylota tarda do have the largest maculae almost touching each other (Figs 2 R, S, 6 O, P). The other two species have smaller maculae, but maculae on tergite 3 are more or less square in X. abiens (Figs 2 P, 3 A) but widely rectangular in X. orientiflorum sp. n. (Figs 2 Q, 5 O). In addition, the latter species can be further separated by having the area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle in male, and small area immediately anterior to ocellar triangle in female) covered with yellowish pile (Fig. 1 Q) while the other two species do not have pile on that area (Fig. 1 P, R – U). The latter species also has black pile on scutal area anterior to wing base, while others have yellow pile. Description of Korean material. MALE. Body length 8.8 – 9.0 mm; wing length 6.1 – 7.3 mm; dark brown to black species with orange-yellow abdominal maculae (Figs 2 P, 3 A). Head black; face with dense yellow pollinosity (Fig. 3 D, E); frons anterior to eye contiguity with dense yellow pollinosity (Figs 1 P, 3 D, E); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 P). Thorax entirely black; scutum subshiny black with appressed short yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with yellowish white pollinosity; posterior anepisternum with yellow pile and yellowish white pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with yellowish white pollinosity, dorsal posterior area with yellow pile; notopleuron with yellow pile; scutal area anterior to wing base with yellow pile; postalar callus with yellow pile; metasternum bare with white pollinosity. Wing hyaline except for brown pterostigma (Fig. 3 A); halter yellowish white. Legs: femora almost entirely dark brown to black; pro- and mesotibiae yellow with subapico-ventral 3 / 5 dark brown; pro- and mesotaromeres 1 – 3 yellow; pro- and mesotaromeres 4 and 5 brown; metatrochanter ventrally with short calcar (subequal to basal width) (Fig. 3 B); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with few spinose setae, antero-dorsally and postero-ventrally with long yellowish white pile, apico-dorsal 1 / 3 with short black pile; basal 1 / 3 of metatibia yellow (Fig. 3 B); metataromeres 1 – 3 dark brown and 4 and 5 black (Fig. 3 B). Abdomen about 2.5 x longer than wide (Figs 2 P, 3 A); terga 2 and 3 more or less parallel-sided; preabdominal terga dark brown in ground color; tergum 2 medially with a pair of orange-yellow and relatively small subrhombic maculae, separated from each other roughly by 1 / 3 of each macula width; tergum 3 with a pair of orange-yellow subsqure maculae, separated from each other by about 1 / 3 of each macula width (Figs 2 P, 3 A). Male genitalia (Figs 8 A – D, 13 E): surstylus with dorsal lobe about twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with spinose setulae (Fig. 8 A, B); ventral lobe of surstylus widely bulged, apically with scattered short setulae (Fig. 8 A, B); cercus cordate in profile with long pale pile (Fig. 8 A, B); lingula indistinct (Fig. 13 E); fenestra small and elliptic in outline (Fig. 8 A, B); spur of superior lobe reduced (Fig. 13 E); superior lobe asymmetrical (Fig. 8 A, B); each lateral arm of theca apico-dorsally with 4 thorny projections (Fig. 8 A, B); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round in lateral view (Fig. 8 C); ejaculatory process short (Fig. 8 C); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243441473EFCEDFC4D98A216B6.taxon	description	FEMALE. Not examined. Bartsch et al. (2009) indicated that European female of this species has frons with a distinct pollinose fascia, the posterior margin of which is straight.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243441473EFCEDFC4D98A216B6.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Inje-gun, Girin-myeon, Mt. Jeombongsan, Valley along Gangseon-ri, 7. VIII. 1997, HY Han et al.; 1 ♂, Inje-gun, Sangnam-myeon, Bangdong-ri, Mt. Bangtaesan, north valley of Guryongduckbong, 1. VIII. 1996, HY Han and HW Byun. Distribution. Europe, Korea, Japan, Northeast China, Russia (From Urals to Sakhalin).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243442473FFCEDFAE49E171601.taxon	description	Figs 1 C, 2 C, 3 F – J, 8 E – H, 13 B	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243442473FFCEDFAE49E171601.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243442473FFCEDFAE49E171601.taxon	materials_examined	Diagnosis. This species can be distinguished from the other Korean Xylota species by its dense yellow pile on abdominal tergum 4 (Fig. 3 F), dark brown metatarsus (Fig. 3 G) and bare anterior half of frons (Figs 1 C, 3 I, J). The following redescription is based on the only available male specimen. Description of Korean material. MALE. Body length 12.5 mm; wing length 9.9 mm; predominantly black species. Head black; face with dense yellow pollinosity except for area under antennae; posterior half of frons anterior to eye contiguity with yellowish pollinosity (Figs 1 C, 3 I, J); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 C). Thorax entirely black (Fig. 3 F); scutum subshiny black with appressed short yellow pile, but posterior half sparsely with longer erect brown pile mixed with shrort pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with whitish yellow pile but without pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with yellowish white pollinosity, dorsal posterior area with yellowish pile; notopleuron with yellow pile; scutal area anterior to wing base with black pile; postalar callus with mainly long yellow pile but anterior small area with few black pile; metasternum bare with yellowish pollinosity. Wing hyaline except for pale brownish pterostigma (Fig. 3 F); halter pale yellow. Legs: femora black; pro- and mesotibiae pale brownish yellow with subapico-ventral 3 / 5 brownish black; pro- and mesotarsomere 1 – 3 pale brownish yellow; pro- and mesotaromeres 4 and 5 dark brown; metatrochanter ventrally with short calcar (subequal to basal width) (Fig. 3 G); apico-ventral 1 / 3 of metafemur with two carinae covered with short and stout setae, remaining basal ventral area with irregularly scattered less stout spinose setae mixed with smaller setae, antero-dorsally and postero-ventrally with long white pile, apico-dorsal 1 / 3 area with short black pile; basal 1 / 3 of metatibia yellow (Fig. 3 G); metatarsomeres 1 – 3 dark brown and metatarsomeres 4 and 5 black (Fig. 3 G). Abdomen about 3 x longer than wide, terga 2 and 3 more or less parallel-sided (Figs 2 C, 3 F), each with a pair of inner facing triangular areas densely covered with long yellow pile (2 – 3 x longer than pile on nearby areas, other areas of terga 2 and 3 covered with appressed short black pile) (Fig. 2 C); tergum 4 densely covered with long yellow pile (Fig. 3 F). Male genitalia (Figs 8 E – H, 13 B): surstylus with dorsal lobe about twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with spinose setulae (Fig. 8 E, F); ventral lobe of surstylus blunt but distinctly projected with apex setulose (Fig. 8 E, F); cercus cordated in profile with long pale pile (Fig. 8 E, F); lingula indistinct (Fig. 13 B); fenestra relatively large and subtriangular in outline (Fig. 8 E, F); spur of superior lobe reduced (Fig. 13 B); superior lobes asymmetrical (Fig. 8 E, F); right lateral arm of theca with two long dorsal thorny processes with 3 – 5 pale pile in between these two processes, also with blund cocks comb shaped apico-ventral process (Fig. 8 E); left lateral arm of theca with similar thorns and pile but apico-ventral process much shorter (Fig. 8 F); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 8 G); ejaculatory process short (Fig. 8 G); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243442473FFCEDFAE49E171601.taxon	description	FEMALE. Unknown.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243442473FFCEDFAE49E171601.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Inje-gun, Sangnam-myeon, Bangdong-ri, Mt. Bang- taesan North valley of Guryongduckbong, 6. VII. 2000, HY Han et al. Distribution. Korea (new record), Northeast China (Dong bei) Remarks. The only available male specimen from Korea agrees fairly well with the genitalic illustrations and description by Yang & Cheng (1998), and Huang & Cheng (2012). Xylota sibirica Loew, 1871 appears to be closely related with X. amaculata by sharing almost identical male genitalia. When comparing with Hippa’s (1978) male genitalic illustration of X. sibirica, the right lateral arms of theca is apico-ventrally sharply pointed in this species, but blunt in X. amaculata (Fig. 8 E).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434434731FCEDFB2D9F3513D1.taxon	description	Figs 1 E, 2 E, 3 K – O, 9 A – D, 13 C	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434434731FCEDFB2D9F3513D1.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434434731FCEDFB2D9F3513D1.taxon	materials_examined	Diagnosis. This black species can be distinguished from the other Korean Xylota species by the combination of the following characters: 1) almost parallel-sided or slightly ovated abdomen (Fig. 2 E); 2) brown pro- and mesotarsomeres 1 – 3 in dorsal view; 3) dark brown to black metatarsus (Fig. 3 L); and 4) metatrochanter ventrally with short calcar (subequal to basal width) (Fig. 3 L). Description of Korean material. MALE. Body length 10.5 – 11.6 mm; wing length 8.0 – 9.0 mm. Head black; face with dense yellowish white pollinosity; posterior 1 / 5 of frons anterior to eye contiguity with yellowish white pollinosity (Fig. 1 E); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 E). Thorax entirely black (Fig. 3 K); scutum subshiny with short appressed yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with white pollinosity; posterior anepisternum with yellowish white pile and dense white pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with white pollinosity, dorsal posterior area with white pile; notopleuron with yellow pile; scutal area anterior to wing base with black and dark brown pile; postalar callus mainly with long yellow pile but anterior portion with few black pile; metasternum bare with white pollinosity. Wing hyaline with pale brownish tinge except for brown pterostigma (Fig. 3 M); halter with basal half of stem dark brown but posterior stem and knob yellow. Legs: femora dark brown to black; pro- and mesotibiae yellow with small dorso-basal yellowish brown area; pro- and mesotarsomeres 1 – 3 ventrally yellow but dorsally brown; tarsomeres 4 and 5 black; metatrochanter ventrally with short calcar (subequal to basal width) (Fig. 3 L); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setae, remaining ventral area with irregularly scattered spinose setae mixed with smaller setae, antero-dorsally and postero-ventrally with long white pile, apico- dorsal 1 / 3 area with black setulae; metatibia dark brown with basal 1 / 5 yellow (Fig. 3 L); metatarsomeres 1 – 3 dark brown, tarsomeres 4 and 5 black (Fig. 3 L). Abdomen about 3 x longer than wide (Figs 2 E, 3 K), terga 2 and 3 almost parallel-sided or slightly ovated, pair of lateral facing triangular areas densely covered with white erect pile (other areas of terga with short appressed black and pale yellow pile mixed) (Fig. 2 E). Male genitalia (Figs 9 A – D, 13 C): surstylus with dorsal lobe twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densly covered with spinose setulae (Fig. 9 A – C); ventral lobe of surstylus widely bulged, apically with setulae (Fig. 9 A – C); cercus cordated in profile with long pale pile (Fig. 9 A – C); lingula indistinct (Fig. 13 C); fenestra round in outline (Fig. 9 B, C); spur of superior lobe reduced (Fig. 13 C); superior lobe asymmetrical (Fig. 9 A – C); right lateral arm of theca (Fig. 9 C) with baso-dorsal thorny process and apico-dorsal 4 toothed process, with 3 pale pile in between these two processes; left lateral arm of theca (Fig. 9 B) similar but apico-dorsal process much narrow; aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 9 D); ejaculatory process short (Fig. 9 D); ejaculatory apodeme apically enlarged in bowl shape.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434434731FCEDFB2D9F3513D1.taxon	description	FEMALE. Not examined. According to the original description, female frons anteriorly bare and posteriorly with short white pile except for light triangular pollinosity macula close to eyes (Mutin, 1988).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434434731FCEDFB2D9F3513D1.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Wonju-si, Heungeop-myeon, Maeji-ri, Yonsei Univ. Wonju Campus, 24. IV. 2004, H. W. Byun; 1 ♂, ditto, 28. IV. 2004, H. W. Byun, O. Y. Lim, H. S. Lee; 2 ♂, ditto, 24. V. 2009, D. J. Cha, H. S. Lee; 1 ♂, ditto, 26. V. 2009, S. W. Suk, J. M. Jung. Distribution. Korea (new record), Russian Far East. Remarks. The Korean specimens agree with the original description as well as the associated illustration of right lateral view of the male genitalia by Mutin (1988).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344D4733FCEDFDFD9F6B11B5.taxon	description	Figs 1 K – L, 2 K – L, 4 A – I, 9 E – H, 13 L	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344D4733FCEDFDFD9F6B11B5.taxon	materials_examined	Diagnosis. Xylota coquilletti looks almost identical to X. spurivulgaris and X. fo in many characters including their slightly constricted medial portion of male abdomen in dorsal view and irregular rows of short and stout black setulae on baso-ventral 1 / 3 of metatibia (Fig. 4 C). Nevertheless, X. coquilletti can be distinguished from the other two species by the following combination of characters: 1) area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle in male and small area immediately anterior to ocellar triangle in female) covered with erect yellowish pile (Fig. 1 K, L); 2) posterior half of frons anterior to eye contiguity with yellowish pollinosity in male (Fig. 1 K, L); and 3) calcar on metatrochanter subequal to basal width of metatrochanter in male (Fig. 4 C). See also Remarks for the detailed comparison with X. spurivulgaris and X. fo. Description of Korean material. MALE. Body length 10.0 – 11.0 mm; wing length 7.5 – 8.5 mm; dark brown to black species with metallic greenish tinge in scutum (Figs 1 K, 2 K). Head black; face with dense yellow pollinosity; posterior half of frons anterior to eye contiguity with yellowish pollinosity (Fig. 1 K); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) covered with yellowish pile (Fig. 1 K). Thorax entirely black; scutum subshiny black with metalic greenish tinge, with appressed short yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with yellow pile and dense white pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with white pollinosity, dorsal posterior area with yellowish white pile; notopleuron with yellow pile; scutal area anterior to wing base with black pile; postalar callus with long yellow pile; metasternum bare with whitish yellow pollinosity. Wing hyaline except for pale brown pterostigma; halter whitish yellow. Legs (Fig. 4 C): femora black; pro- and mesotibiae yellow with about apical half brownish; pro- and mesotarsomere 1 – 3 yellow, tarsomeres 4 and 5 brown; metatrochanter ventrally with short calcar in male (subequal to basal width) (Fig. 4 C); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setae, mid-ventral uncarinated 1 / 3 area also with two rows of spinose setae (anterior row cover full area but posterior row only reach to mid point in male), antero-dorsally and postero-ventrally with long white and yellow mixed pile, apico-dorsal 1 / 4 area with black setulae; metatibia dark brown with basal 1 / 3 yellow, baso-ventral 1 / 3 with irregular rows of short and stout black setulae (Fig. 4 C); metatarsomeres 1 – 3 brown, tarsomeres 4 and 5 black (Fig. 4 C). Abdomen about 2.5 x longer than wide (Figs 2 K, 4 A); tergum 2 posteriorly slightly constricted in male (Fig. 2 K); terga 2 and 3 each laterally with pair of lateral facing metalic greenish triangular areas covered by yellow erect pile; other areas of terga 2 and 3 black with appressed short black pile (Fig. 2 K). Male genitalia (Figs 9 E – H, 13 L): surstylus with dorsal lobe twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, basally flattened in dorso-caudal view (Fig. 9 E), densly covered with spinose setulae (Fig. 9 E – G); ventral lobe of surstylus broadly projected with short setulae (Fig. 9 F, G); cercus cordated in profile with long pale pile (Fig. 9 F, G); lingula indistinct (Fig. 13 L); fenestra large and transversely elliptic in outline (Fig. 9 F, G); spur of superior lobe reduced (Fig. 13 L); superior lobe almost symmetrical (Fig. 9 F, G); lateral arm of theca sparsely with setulae, dorsally rounded and apico-ventrally with single sharp black spine (Fig. 9 F, G); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 9 H); ejaculatory process short (Fig. 9 H); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344D4733FCEDFDFD9F6B11B5.taxon	description	FEMALE. Similar to male except for the following non-genitalic characters: Head (Fig. 1 L): frons with about anterior 1 / 3 shiny black and bare, with posterior 2 / 3 shiny black and covered with yellowish pile, medially with pair of areas of white pollinosity; area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) covered with yellowish pile. Leg (Fig. 4 D): metatrochanter without calcar; apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setae, mid-ventral uncarinated 1 / 3 area also with two rows of spinose setae (anterior row covers full area but posterior row clearly falls behind mid point). Abdomen (Fig. 2 L): tergum 2 posteriorly slightly widened.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344D4733FCEDFDFD9F6B11B5.taxon	materials_examined	Material examined. SOUTH KOREA: Chungcheongbuk-do: 1 ♂, Jecheon-si, Baegus-myeon, Hwadong-ri, N 37 ° 10 ’ 38 ” E 127 ° 56 ’ 28 ”, 7. V. 2012, SW Suk et al. Gangwon-do: Donghae-si, Sanhwa-dong, Mureung valley, N 37 ° 28 ’ 02 ” E 129 ° 01 ’ 53 ”, 23. VIII. 2011, YB Lee, DH Kim and HS Lee; 3 ♂, Hoengseong-gun, Dunnae-myeon, Mt. Cheongtaesan Sapgyo-ri to 1200 m peak, 7. VII. 2001, DS Choi et al.; 2 ♂, 1 ♀, ditto, 5. VI. 2003, DS Choi and HS Lee; 3 ♂, 1 ♀, ditto, 18. VI. 2005, HY Han et al.; 1 ♂, ditto, 6. VII. 2007, HS Lee et al.; 1 ♂, ditto, 10. VIII. 2001, HY Han et al.; 4 ♂, Inje-gun, Girin-myeon, Mt. Jeombongsan from Jindong-ri to 1424 m peak, 24. VI. 2009, SW Suk et al.; 1 ♀, Jeongseon-gun, Nam-myeon, Mt. Mindungsan from Yupyeong-ri to 1119 m peak, 25. V. 2005, HY Han et al.; 1 ♀, Pyeongchang-gun, Mitan-myeon, Sucheong-ri, N 37 ° 18 ’ 19 ” E 128 ° 33 ’ 11 ”, 10. VI. 2011, SW Suk and HS Lee; 1 ♀, Taebaek-si, Hyeol-dong, Mt. Taebacksan from Yuilsa Temple to 1560.6 m peak, 12. VIII. 2000, DS Choi et al.; 1 ♀, Wonju-si, Heungeop-myeon, Maeji-ri, Hwae-chon, 6. VI. 1997, HY Han et al.; 3 ♂, Wonju-si, Heungeopmyeon, Maeji-ri, from Hwae-chon to 966 m peak, 18. VI. 2000, DS Choi and SK Kim; 1 ♂, Wonju-si, Heungeopmyeon, Maeji-ri, Yonsei Univ. Wonju Campus, 26. VI. 2003, HW Byun; 1 ♂, ditto, 30. VI. 2003, DS Choi; 1 ♂, ditto, 3. IX. 2003, DS Choi and HW Byun; 1 ♂, ditto, 25. IX. 2004, DS Choi and HW Byun; 1 ♂, ditto, 19. VII. 2006, JS Lim; 1 ♂, ditto, 9. VIII. 2008, JM Jung; 2 ♂, ditto, 26. V. 2009, SW Suk and JM Jung; 1 ♂, ditto, 27. V. 2009, JM Jung; 3 ♂, ditto, 2. VI. 2009, HS Lee; 1 ♂, ditto, 17. VI. 2009, Suk et al.; 1 ♂, ditto, 18. VI. 2009, YB Lee; 1 ♂, ditto, 29. VI. 2009, DJ Cha et al.; 1 ♂, ditto, 28. VIII. 2009, DJ Cha and YB Lee; 1 ♂, Wonju-si, Panbu-myeon, Seogok, Mt. Baegunsan from Yongsu-gol to 1087.1 m peak, 7. VII. 1998, DS Choi and DE Kim; 1 ♂, ditto, 12. VII. 1998, DS Choi; 1 ♂, ditto, 27. VII. 1998, HW Byun et al.; 1 ♂, ditto, 29. VII. 1998, DS Choi and SK Kim; 1 ♂, ditto, 19. VI. 1999, HY Han et al.; 3 ♂, ditto, 3. VII. 1999, DS Choi and SK Kim; 1 ♀, ditto, 16. VI. 2006, DS Choi et al.; 1 ♂, Wonju-si, Sillim-my- eon, Mt. Chiaksan, Seongnam-ri to 1181.5 m Namdaebong peak, 30. VII. 2003, OY Lim and HS Lee; Samcheok-si, Dogye-eup, Dogye-ri from Amisa Temple to Dusugol, 7. VI. 2003, DS Choi et al.; 2 ♂, ditto, 31. VII. 2003, DS Choi et al. Gyeonggi-do: 1 ♀, Gwangju-si, Docheok-myeon, Sangnim-ri, Mt. Taehwasan, N 37 ° 18 ’ 44 ” E 128 ° 18 ’ 36 ”, 14. IX. 2012, HY Han et al.; 1 ♂, Gapyeong-gun, Jojong-myeon, Mt. Myeongjisan Guimokgogae, 29. VI. 1999, SM Ryu; 1 ♂, Yangpyung-gun, Yongmoon-myeon, Uounsu-ri, Mt. Yongmoon, 30. VII. 1998, HW Byun et al.; Gyeongsangnam-do: 6 ♂, Yangsan-si, Yongdanag-dong, Mt. Daeunsan, N 35 ° 24 ’ 06 ” E 129 ° 12 ’ 48 ”, 3. VII. 2009, HS Lee et al. Jeollabuk-do: 1 ♀, Muju Gucheon-dong, 11. VI. 1972, JI Kim (KUK); 1 ♂, Namwon-si, Sannae-myeon, Mt. Jirisan, Baemsagol, 646 m, 9. VI – 9. VII. 2001, DS Ku; 4 ♂, dittio, 11. VI – 11. VII. 2001, DS Ku. Jeollanam-do: 1 ♂, Gwangyang-si, Ongyong-myeon, Mt. Baegunsan from jinteul, N 35 ° 06 ’ 23 ” E 127 ° 37 ’ 17 ”, 16. VI. 2014, SW Suk and YB Lee; 1 ♀, Jangheung-gun, Gansan-eup, Mt. Cheongwansan from Jeangcheonjae to Yeongdaebong 723 m peak, 14. V. 2000, DS Choi et al. JAPAN: 1 ♂, Holotype, Shinokawa, Amami-Oshima, 15. V. 1953, T. Shiraki (NIAES) Distribution. Korea, China, Taiwan, Japan, Russia (From Altay to Kuril Isles) Remarks. This species was originally named as X. cuprina by Coquillett (1898) but this name was preoccupied by Xylota cuprina Bigot, 1885. Consequently, Hervé-Bazin (1914) provided a new name for Coquillett’s species as X. coquilletti. Xylota coquilletti is one of the most common Xylota species in Korea. This species is very similar to X. spurivulgaris and X. fo, which we recognized for the first time in this country. We believe that many previous Korean records of X. coquilletti (see synonymy provided above) should have been misidentifications of either X. spurivulgaris or X. fo because these two species are also quite common in Korea. Among these species, females of X. spurivulgaris and X. fo are not separable. However, females of X. coquilletti can be distinguished by the combination of the following characters: 1) area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) covered with yellow pile vs. bare; and 2) metafemur spinose setulae with anterior spinose rows reaching apical 4 / 5, posterior reaching apical 2 / 3 vs. metafemur setulae with anterior spinose rows covering whole length, posterior row reaching to middle.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344F4734FCEDFBE19FC41191.taxon	description	Figs 1 D, 2 D, 4 J – N, 9 I – L, 13 G	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344F4734FCEDFBE19FC41191.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344F4734FCEDFBE19FC41191.taxon	materials_examined	Diagnosis. This species can be distinguished from the other Korean Xylota species by the following characteristics: 1) anterior 1 / 2 area of anterior anepisternum bare; 2) baso-dorsal 2 / 3 of metabasotarsomere dark brown (Fig. 4 K); and 3) abdominal tergites 2 and 3 brownish contrasting well with its predominantly black body coloration (Fig. 4 J). Description of Korean material. MALE. Body length 10.9 – 12.6 mm; wing length 8.8 – 10.1 mm; brown to dark brown species. Head black; face with dense white pollinosity; posterior 1 / 4 of frons anterior to eye contiguity with yellowish pollinosity (Fig. 1 D); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 D). Thorax entirely black; scutum subshiny black with short appressed yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior 1 / 2 of anterior anepisternum bare and posterior 1 / 2 covered with yellowish pollinosity; posterior anepisternum with yellow pile but without pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with yellowish white pollinosity, dorsal posterior area with white pile; notopleuron with yellow pile; scutal area anterior to wing base with yellow pile and few black pile mixed; postalar callus with long yellow pile; metasternum bare with yellow pollinosity. Wing hyaline except for dark brown pterostigma; halter with basal half of stem dark brown but posterior stem and knob yellow. Legs: femora dark brown to black; pro- and mesotibiae yellow with about apical half brownish; pro- and mesotarsomeres 1 – 3 yellow, tarsomeres 4 and 5 black; metatrochanter ventrally with elongated and sharp calcar (at least twice as long as basal width) (Fig. 4 K); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area irregularly covered with spinose setae (Fig. 4 K), antero-dorsally and postero-ventrally with long white pile but apico-dorsal 1 / 3 area with black setulae; metatibia dark brown with basal 1 / 3 yellow (Fig. 4 K); dorso-basal 2 / 3 of metabasotarsomere brown but apico-ventral 1 / 3 yellow (Fig. 4 K); metatarsomere 2 yellow, metatarsomere 3 dark brown, metatarsomeres 4 and 5 black (Fig. 4 K). Abdomen about 3.5 x longer than wide (Figs 2 D, 4 J), terga 2 and 3 more or less parallel-sided, dark brown and medially with vague elongated brownish tinged area; each of terga 2 and 3 with pair of inner facing triangular areas densely covered with white erect pile (other areas of terga with short appressed black and pale yellow pile mixed) (Figs 2 D, 4 J); tergum 4 dark brown, with short black pile and long yellow pile. Male genitalia (Figs 9 I – L, 13 G): surstylus with dorsal lobe twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densly covered with spinose setulae (Fig. 9 I – K); ventral lobe of surstylus blunt but distinctly projected with apex setulose, (Fig. 9 J, K); cercus cordated in profile with long pale pile (Fig. 9 J, K); lingula indistinct (Fig. 13 M); fenestra transversely elliptic in outline (Fig. 9 J, K); spur of superior lobe reduced (Fig. 13 M); superior lobe almost symmetrical, lateral arms of theca elongated, apico-ventrally crooked down with pointed apex, dorsally with 4 – 6 spinose denticles, apico-dorsal area microtrichiae with spears pile (Fig. 9 J, K); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 9 L); ejaculatory process short (Fig. 9 L); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344F4734FCEDFBE19FC41191.taxon	description	FEMALE. Not examined but according to the original description: frons shiny black with gray spots laterally; terga 2 and 3 each with triangular maculae of lead color (bluish gray color) laterally (Stackelberg, 1952).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344F4734FCEDFBE19FC41191.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Inje-gun, Girin-myeon, Mt. Jeombongsan 1424 m peak from Sangeo-ri, 29. V. 1999, H. Y. Han et al.; 2 ♂, Jeongseon-gun, Jeongseon-eup, Hoedong-ri, N 37 ° 25 ’ 59 ”, E 128 ° 33 ’ 49 ”, 7. VI. 2011, H. S. Lee, Y. B. Lee, D. H. Kim. Distribution. Korea (new record), Russian Far East. Remarks. The specimens of X. filipjevi collected in Korea agree with the identification key and genitalic illustration by Mutin & Barkalov (1999). Xylota filipjevi and X. tarda show distinctly different appearance but appear to be closely related by sharing the following morphological characteristics: 1) lateral arms of theca of male genitalia apically crooked down; and 2) anterior portion of anterior anepisternum bare.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434484737FCEDFBBD98201695.taxon	description	Figs 1 N, O 2 N, O, 4 O – W, 10 A – D, 13 N	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434484737FCEDFBBD98201695.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434484737FCEDFBBD98201695.taxon	materials_examined	Diagnosis. Among Korean Xylota species, X. fo looks almost identical to X. coquilletti and X. spurivulgaris. However, both sexes of X. coquilletti could be separated from those of the other two species by the characteristics listed in the Diagnosis of X. coquilletti. Males of X. fo could be further distinguished by the elongated calcar on metatrochanter (at least twice as long as basal width) (Fig. 4 Q) while X. spurivulgaris males do have much shorter calcar (Fig. 6 K). Unfortunately, we were not able to separate females of these two species (Figs 1 N, 2 N). Description of Korean material. MALE. Body length 9.6 – 12.5 mm; wing length 7.5 – 8.8 mm; brown to dark brown species. Head black; face with dense yellow pollinosity; frons anterior to eye contiguity with dense yellow pollinosity (Fig. 1 O); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 2 O). Thorax entirely black (Fig. 4 O); scutum subshiny black with short appressed yellow pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with heavy white pollinosity and white pile (upper 1 / 2 mixed with yellow pile); katepisternum moderately covered with whitepollinosity, dorsal posterior area with yellowish white pile; notopleuron with yellow pile; scutal area anterior to wing base with black pile; postalar callus with long yellow pile; metasternum bare with yellowish white pollinosity. Wing hyaline except for pale brown pterostigma; halter pale yellow (Fig. 4 S). Legs: femora black; pro- and mesotibiae yellow with about apical half brownish; pro- and mesotarsomeres 1 – 3 yellow, tarsomeres 4 and 5 brown; metatrochanter ventrally with elongated and sharp calcar (at least twice as long as basal width) (Fig. 4 Q); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with two rows of spinose setae except for basal 1 / 5 (anterior row cover whole length but posterior row reach to middle), antero-dorsally and postero-ventrally with long white and yellow mixed pile, apico-dorsal 1 / 3 area with black setulae; metatibia dark brown with basal 1 / 3 yellow, baso-ventral 1 / 3 with irregular rows of short and stout black setulae; metatarsomere 1 – 3 brown, tarsomeres 4 and 5 black (Fig. 4 Q). Abdomen about 3 x longer than wide, tergum 2 posterior slightly constricted (Figs 2 O, 4 O); terga 2 and 3 each laterally with pair of lateral facing triangular areas covered by yellow erect pile other areas of terga 2 and 3 black with appressed short black pile (Fig. 2 O). Male genitalia (Figs 10 A – D, 13 N): surstylus with dorsal lobe bulged out in middle, twice as long as ventral lobe, long finger shaped and slightly bent downward in lateral view, densly covered with spinose setulae (Fig. 10 A – C); ventral lobe of surstylus blunt but distinctly projected, dorso-apically with short setulae (Fig. 10 A – C); cercus cordated in profile with long pale pile (Fig. 10 A – C); lingula indistinct (Fig. 13 N); fenestra large and elliptic in outline (Fig. 10 B, C); spur of superior lobe reduced (Fig. 13 N); superior lobe almost symmetrical; lateral arm of theca apically with number of short but strong club-shaped setae, dorsally round and apico-ventrally serrated with four denticles (Fig. 10 B, C); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 10 D); ejaculatory process short (Fig. 10 D); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434484737FCEDFBBD98201695.taxon	description	FEMALE. Since we were not able to separate females of X. fo and X. spurivulgaris, following female characteristics are those of both species different from males: 1) frons with about anterior 1 / 3 shiny black and bare, with posterior 2 / 3 shiny black and covered with yellowish pile, medially with pair of areas of white pollinosity (Fig. 1 N); 2) abdominal terga almost parallel-sided (Figs 2 N, 4 P); 3) metafemur covered with sparser stout spinose setae (Fig. 4 R) and 4) metatrochanter without calcar.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434484737FCEDFBBD98201695.taxon	materials_examined	Material examined (males only). SOUTH KOREA: Chungcheongbuk-do: 1 ♂, Chungwon-gun, Namsung-my- eon Mt. Inkyungsan, 15. VIII. 1997, HY Han et al. Chungcheongnam-do: 1 ♂, Boryeong-si, Cheongla-myeon, Janghy- eon-ri, Mt. Oseosan 790 m peak from Weolieongsa Temple, 20. VII. 1999, HY Han et al.; 1 ♂, Seosan-si, Daesan-eup, Daesan-ri, Mangil, 29. VIII. 2009, HY Han et al. Gyeonggi-do: 1 ♂, Gwangju-si, Docheok-myeon, Sangim-ri, Mt. Taehwasan, 14. IX. 2012, HY Han et al. Gangwon-do: 1 ♂, Chuncheon-si, Namsan-myeon, Gangchon, 19. VI. 1974, DH Yang (KUK); 1 ♂, Gangneung-si, Okgye-myeon, Sangye-ri, 7. X. 2010, HS Lee et al.; 1 ♂, Hoengsung-gun, Gapchun-myeon, Yangjimal, N 37 ° 18 ’ 44 ” E 127 ° 18 ’ 36 ”, 22. VI. 1998, DS Choi; 1 ♂, Inje-gun, buk-myeon, Yong- dae-ri, N 38 ° 57 ’ 21 ” E 128 ° 21 ’ 23 ”, 28. VIII. 2011, DS Oh (NIBR); 1 ♂, Inje-gun, Girin-myeon, Mt. Jeombongsan, from Jindong-ri to Gombaeryeong, 29. V. 1999, HY Han et al.; 1 ♂, Samcheok Dogye-eup Dogye-ri from Amisa Temple to Dudugol, 7. VI. 2003, DS Choi et al.; 1 ♂, ditto, 8. VI. 2003, DS Choi et al.; 1 ♂, Samcheok Dogye-eup from Gwangmyeong-sa to Sangdeok-ri. 7. VI. 2003, DS Choi et al.; 2 ♂, Wonju-si Panbu-myeon, Seogok-ri, Mt. Baegunsan from Yongsu-gol to 1087.1 m peak, 1. VI. 2009, SW Suk et al.; 1 ♂, Wonju-si, Heungeop-myeon, Maejiri, Hoechon, 25. V. 1998, HW Byun et al.; 1 ♂, Wonju-si, Heungeop-myeon, Maeji-ri, Yonsei Univ. Wonju Campus, 10. VI. 1996, HW Byun; 1 ♂, ditto, 25. V. 1997, HW Byun; 1 ♂, ditto, 17. V. 1998, HW Byun; 1 ♂, ditto, 19. V. 1998, HW Byun; 1 ♂, ditto, 12. VI. 1998, HY Han et al.; 1 ♂, ditto, 14. VI. 1998, HW Byun et al.; 1 ♂, ditto, 15. VI. 2006, JS Lim; 1 ♂, ditto, 4. VIII. 2008, SW Suk et al.; 4 ♂, ditto, 24. V. 2009, DJ Cha and HS Lee; 2 ♂, ditto, DJ Cha and YB Lee, 25. V. 2009; 2 ♂, ditto, 27. V. 2009, JM Jung; 1 ♂, ditto, 30. V. 2009, Cha et al.; 1 ♂, ditto, 2. VI. 2009, HS Lee et al.; 1 ♂, ditto, 9. VIII. 2009, DJ Cha et al.; 1 ♂, ditto, 28. VIII. 2009, DJ Cha and YB Lee. Gyeonggi-do: 1 ♂, Cheongpyeong, 6. VI. 1987, LHS (SNU); 1 ♂, Gapyoung-gun, 12. IX. 1993, YK Yang (SNU); 1 ♂, Gimpo-si, Wolgot-myeon, Mt. Munsusan, 1. VII. 1987. JI Kim (SWU). Gyeongsangnam-do: 1 ♂, Daegu-si, Nam-gu, Mt. Apsan, 19. VI. 1992, YM Kim (YNU). Jeollanam-do: 1 ♂, Haenam-gun, Samsan-myeon, Mt. Duryunsan from Daeheungsa to 703 m peak, 9. VIII. 2003, HY Han et al.; 1 ♂, Suncheon-si, Songwang-myeon, Mt. Jogyesan, 26. VIII. 2008, HS Lee et al. Additional material examined (mixed females of X. fo and X. spurivulgaris; see Diagnosis and Remarks). SOUTH KOREA: Chungcheongbuk-do: 1 ♀, Chungju-si, Jongmin-dong, Mt. Gyemyeongsan (775 m) peak, 3. VI. 2004, HY Byun et al.; 1 ♀, ditto, 13. IX. 2007, SW Suk et al.; 1 ♀, Chungju-si, Sotae-myeon, Deokeun-ri, Nam- hangang river side, 11. X. 2002, DS Choi et al.; 1 ♀, Chungwon-gun, Namsung-myeon, Mt. Inkyung, 15. VIII. 1997, HY Han et al.; 1 ♀, Chungcheongnam-do: 1 ♀, Boryeong-si, Cheongla-myeon, Janghyeon-ri, Mt. Oseosan 790.7 m peak from Weolieongsa temple, 20. VII. 1999, HY Han et al. Jeollabuk-do: 5 ♀, Namwon-si, Sannae-myeon, Mt. Jirisan, Baemsagol (646 m), 11. VI. – 11. VII. 2001, DS Ku; 1 ♀, ditto 26. VII. – 26. VIII. 2013, JS Ahn and SW Choi (NIBR). Jeollanam-do: 1 ♀, Gurye-gun, Mt. Jirisan, Nogodan, 11. IX. 1998, HY Han and KE Ro; 1 ♀, Gwangyang-si, Jinsang-myeon, Eochi-ri, Mt. Baekunsan, Naehoe valley, N 36 ° 06 ’ 16 ” E 127 ° 39 ’ 10 ”, 20. IX. 2012, HS Lee et al.; 1 ♀, Haenam-gun, samsan-myeon, Mt. Duryunsan from Daeheungsa temple 703 m peak, 9. VII. 2003, HY Han; 1 ♀, Hae- nam-gun, Samsan-myeon, Daeheungsa temple, JS Jang, 12. VII. 1986 (NIBR); 1 ♀, Seungju-gun, Seonamsa temple, 22. VI. 1987, JI Kim. Jeju-do: 1 ♀, Jeju-si, Haean-dong, N 33 ° 24 ’ 56 ” E 126 ° 29 ’ 08 ”, 18. IX. 2010, HS Lee et al. Gangwon-do: 1 ♀, Cheolwon-gun, Dongsong-eup, Gangsan-ri, Dongsong reservoir, 27. VIII. 2010, SW Park (NIBR); 1 ♀, Goseong-gun, Ganseong-eup, Sottongyeong, 21. X. 2008, HS Lee and DJ Cha; 1 ♀, Donghae-si, Sanhwa-dong, Mu- reung valley, N 37 ° 28 ’ 02 ” E 129 ° 01 ’ 53 ”, 14. V. 2011, SW Suk et al.; 1 ♀, ditto, 11. VI. 2012, SW Suk et al.; 1 ♀, Hoengseong-gun, Anheung-myeon, Mt. Chiaksan frm Gangrim 4 - ri to Cheonjibong, N 37 ° 23 ’ 51 ” E 128 ° 05 ’ 23 ”, 9. VI – 20. VI. 2013, HY Han et al.; 1 ♀, ditto, 22. VIII. 2013, HS Lee et al.; 1 ♀, Hongcheon-gun, Nae-myeon, Bang- nae-ri, 9. IX. 2007, JS Lim et al.; 1 ♀, Hongcheon-gun, Nae-myeon, Changchon-ri, 9. IX. 2007, JS Lim et al.; 1 ♀, Hongcheon-gun, Nae-myeon, Gachilbong from Sambongyaksu to 1240 m peak, 12. VIII. 2003, DS Choi and JS Soh; 1 ♀, Hongcheon-gun, Nae-myeon, Mt. Gyebangsan, Unduryeong, N 37 ° 43 ’ 41 ” E 128 ° 27 ’ 55 ”, 15. VII. 2010, SW Suk et al.; 1 ♀, Hwachun-gun, Sannae-myeon, Gwangduk-dong, Mt. Gwangduksan, 20. VIII. 1998, HW Byun et al.; 2 ♀, ditto, 29. VIII. 2000, CH Park and DW Kim; 1 ♀, Inje-gun, Buk-myeon, East balley of Mt. Maebongsan, 25. VIII. 1998, HY Han et al.; 1 ♀, Inje-gun, Buk-myeon, Yongdae-ri, N 38 ° 13 ’ 21 ” E 128 ° 21 ’ 49 ”, 28. VIII. 2011, DS Oh (NIBR); 1 ♀, Inje-gun, Goseong-gun, Goseong-eup, 8. X. 2008, HS Lee et al.; 1 ♀, Inje-gun, Girin-myeon, Mt. Jeombong-san from Jindong-ri to 1424 m peak. 24. VI. 2009, SW Suk et al.; 1 ♀, Jeongseon-gun, Jeongseon-eup, Mt. Gariwangsan, N 37 ° 25 ’ 48 ” E 128 ° 31 ’ 48 ”, 14. V – 14. VII. 2008, JE Yeo et al. (NIBR); 2 ♀, Jeongseon-gun, Jeongseon-eup, Mt. Gari- wangsan, N 37 ° 27 ’ 40 ” E 128 ° 33 ’ 48 ”, 4. VI. 2013, HS Lee et al.; 1 ♀, Jeongseon-gun, Jeongseon-eup, Nam-myeon, Mt. Mindungsan, from Yupyung-ri to 1119 m peak, 9. VIII. 2001. HY Han and KE Ro; 1 ♀, ditto, 31. V. 2006, HY Han et al.; 1 ♀, ditto, 25. V. 2012, HY Han et al.; 1 ♀, ditto, 24. V. 2014, YB Lee, SH Jeong and DS Ham; 1 ♀, Pyeongchanggun, Bangrim-myeon, Ungyo-ri, N 37 ° 26 ’ 17 ” E 128 ° 19 ’ 11 ”, 24. IX. 2010, SW Suk et al.; 1 ♀, Pyeongchang-gun, Jin- bu-myeon, Tapdong-ri, Mt. Odaesan, 31. VII. – 30. VIII. 2008, SJ Park et al. (NIBR); 1 ♀, Samcheok-si, Dogye-eup, from Gwangmyeongsa to Sangdeok-ri, 1. VIII. 2003, DS Choi et al.; 1 ♀, Yeongwol-gun, seo-myeon, ssangyong-ri, 5. V. 2003, DS Choi et al.; 2 ♀, Youngwol-gun, Suju-myeon, Dusan-ri, N 37 ° 18 ’ 51 ” E 128 ° 11 ’ 25 ”, 30. IX. 2010, SW Suk et al.; 1 ♀, Wonju-si, Maeji-ri, Buron-myeon, Dangang-ri, N 37 ° 11 ’ 21 ” E 127 ° 49 ’ 03 ”, 5. V. 2012, YB Lee et al.; 1 ♀, Wonju-si, Maeji-ri, Hwaechon, 21. VII. 1997, HW Byun and DS Choi; 2 ♀, Wonju-si, Heungeop-myeon, Maeji-ri, Yonsei Univ. Wonju Campus, 4. X. 2002, DS Choi and HW Byun; 4 ♀, ditto, 3. IX. 2003, DS Choi and HW Byun; 1 ♀, ditto, 19. V. 2004, HW Byun; 1 ♀, ditto, 4. VI. 2004, OY Lim; 1 ♀, ditto, 23. VII. 2004, DS Choi; 1 ♀, ditto, 21. VIII. 2005, HW Byun; 1 ♀, ditto, 15. VI. 2006, JS Lim; 1 ♀, ditto, 14. VIII. 2008, DJ Cha and JM Jung; 2 ♀, ditto, 30. V. 2009, JM Jung and HS Lee; 1 ♀, ditto, 26. VII. 2011, YB Lee et al.; 1 ♀, Wonju-si, Panbumyeon, Seogok-ri, Daeyongso-dong, 9. VI. 1996, HY Han and HW Byun; 1 ♀, Wonju-si Panbu-myeon, Seogok-ri, Mt. Baegunsan from Yongsu-gol to 1087.1 m peak, 1. VI. 2009, SW Suk et al. Gyeonggi-do: 1 ♀, Gyeonggi-do Gapyeong-gun Cheongpy- eong, 10. VI. 1987, YK Cheong; 1 ♀, Gwangju-si, Docheock-myeon, Sangnim-ri, Mt. Taehwasan, 14. IX. 2012, HY Han; 1 ♀, Pocheon-si, Mt. Myeongseongsan, GG Kim and NH Ahn, 17. VII. 2008 (NIBR); 3 ♀, Yeongcheon-gun, Jongjasan, 11. VI. – 16. VII. 2018, NH Ahn and GG Kim (NIBR). Gyeongsangbuk-do: 1 ♀, Bonghwa-gun, Myeonghomyeon, Mt. Cheongnyangsan from Ticket offce to 870 m peak, 30. VI. 2007, HY Han et al.; 1 ♀, Cheongsong-gun, Hyeonseo-myeon, Galcheon-ri, N 36 ° 10 ’ 48 ” E 128 ° 56 ’ 56 ”, 29. VIII. 2011, SW Suk et al. Gyeongsangnam-do: 1 ♀, Goeje-si, Dongbu-myeon, Hakdong-ri, 23. V. – 24. V. 1990, (NIBR); 1 ♀, Goechang-gun, Namsang-myeon, Ogye-ri, Mt. Gamaksan, Yeonsusa temple, 5. IX. 1998, JS Park (NIBR); 1 ♀, Yangsan-si, Yongdang-dong, Mt. Daeunsna, 3. VII. 2009, HS Lee et al. Distribution. Korea (new record), China, Russian Far East. Remarks. Xylota coquilletti, X. fo, and X. spurivulgaris are extremely similar to one another. As noted in Diagnosis above, males of all three species and females of X. coquilletti can be distinguished based on subtle characters, but females of X. fo and X. spurivulgaris could not be separated from each other.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344B4728FCEDFAC19DE01695.taxon	description	Figs 1 F, 2 F, 5 A – E, 10 E – H, 13 D	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344B4728FCEDFAC19DE01695.taxon	materials_examined	Diagnosis. Among Korean species, Xylota hauseri sp. n. is most similar to X. umbrosa, especially having the purplish lustrous tinge on their black abdominal terga and the apex of the left arm of theca in male genitalia apicodorsally round. However, X. hauseri sp. n. can be distinguished from X. umbrosa by the following characteristics: 1) male abdomen medially constricted in dorsal view (Figs 2 A, 7 A) vs. more or less parallel-sided (Figs 2 F, 5 A); 2) right lateral arm of theca apico-dorsally with five strong spine-like process (Fig. 10 G) vs. with finely serrated (Fig. 12 G). Description. MALE. Body length 11.5 – 11.6 mm; wing length 9.1 mm. Head black; with heavily yellowish pollinosity face; posterior 1 / 5 of frons anterior to eye contiguity with white pollinosity (Fig. 1 F); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 F). Thorax entirely black; scutum subshiny black with short appressed yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with pale white pile and white pollinosity; anepimeron covered with white pile; katepisternum moderately covered with yellowish white pollinosity, dorsal posterior area with white pile; notopleuron covered with pale yellow pile; scutal area anterior to wing base with black pile; postalar callus covered with whitish yellow pile; metasternum bare with few white pollinosity. Wing entirely with pale brownish tinge (Fig. 5 A); pterostigma brown; halter with basal 1 / 3 of stem dark brown and posterior part of stem and knob yellow. Legs: femora dark brown to black; pro- and mesotibiae black with dorso-basal 1 / 3 yellow; pro- and mesotarsomeres 1 and 2 yellow, tarsomere 3 brown, tarsomeres 4 and 5 dark brown to black; metatrochanter ventrally with short tubercle like calcar (subequal to basal width) (Fig. 5 B); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setuale, remaining ventral area with few spinosesetae; antero-dorsally and postero-ventrally with long yellowish white mixed pile, apico-dorsal 1 / 3 area with short and black pile; metatibia dark brown to black with basal 1 / 3 pale yellow (Fig. 5 B); metatarsomere dark brown to black (Fig. 5 B). Abdomen about 3.5 x longer than wide and black with purplish lustrous tinge (Figs 2 F, 5 A); tergum 2 slightly narrowed posteriorly; tergum 3 slightly widened posteriorly (Figs 2 F, 5 A); tergum 2 with black appressed short black pile except laterally inner facing triangular areas covered by white erect pile (Fig. 2 F); tergum 3 with black appressed short black pile except anterior half laterally inner facing triangular areas covered by white erect pile (Fig. 2 F). Male genitalia (Figs 10 E – H, 13 D): syrstylus with dorsal lobe elongated about 1.5 × as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with setulae (Fig. 10 E – G); ventral lobe of surstylus blunt but distinctly projected with apex setulose (Fig. 10 E – G); cercus cordated in profile with long pale pile (Fig. 10 E – G); lingula indistinct (Fig. 13 H); fenestra large and subtriangular in outline (Fig. 10 E, F); spur of superior lobe reduced (Fig. 13 H); superior lobe asymmetrical; right lateral arm of theca (Fig. 10 F) with baso-dorsal thorny processes and apico-dorsal 5 pointed process, with 3 pale pile in between these two processes; left lateral arm of theca (Fig. 10 G) with baso-dorsal thorny process and apico-dorsally with round apex with 5 denticles, with 3 pale pile in between these two processes; aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 10 H); ejaculatory process short (Fig. 10 H); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344B4728FCEDFAC19DE01695.taxon	description	FEMALE. Unknown.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24344B4728FCEDFAC19DE01695.taxon	materials_examined	Type material. HOLOTYPE: ♂, South Korea, Gangwon-do, Jeongseon-gun, Nam-myeon, Mt. Mindungsan from Yupyeong-ri to 1119 m peak, 4. VII. 2007, H. Y. Han et al. (NIBR). PARATYPE: 1 ♂, South Korea, Gangwondo, Jeongseon-gun Nam-myeon, Mt. Mindungsan from Yupyeong-ri to 1119 m peak, 17. VI. 2007, H. Y. Han, S. W. Suk (YSUW). Distribution. Korea. Remarks. This species and X. umbrosa are closely related because they are very similar both in general appearance (especially similar leg colorations and purplish lustrous tinge on abdominal terga) as well as in male genitalic structures (Fig. 10 E – H vs. Fig. 12 E – H; see Diagnosis for their separation). Etymology. We named this species after Dr. Martin Hauser, who initially inspired us to study this fascinating genus of Syrphidae in Korea.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434544729FCEDFAC19907142C.taxon	description	Figs 1 T, U, 2 T, U, 5 F – N, 10 I – L, 13 K	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434544729FCEDFAC19907142C.taxon	materials_examined	Diagnosis. This species can be readily distinguished from the other Korean Xylota species by orange coloration on the abdominal terga 2 and 3 (Figs 2 T, U, 5 F, G) and strongly curved apico-ventral ridge of metafemur. Description of Korean material. MALE. Body length: 11.6 – 12.5 mm; wing length: 9 – 10 mm. Head black; face with dense yellow pollinosity; frons anterior to eye contiguity with dense yellow pollinosity (Fig. 1 T); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 T). Thorax entirely black; scutum subshiny black with short appressed yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with white pollinosity; posterior anepisternum with whitish yellow pile and white pollinosity; anepimeron covered with white pile; katepisternum moderately covered with white pollinosity, dorsal posterior area with white pile; notopleuron with yellowish white pile; scutal area anterior to wing base with black pile; postalar callus with mainly long yellow pile but anterior small portion with few black pile; metasternum bare with white pollinosity. Wing pale brownish tinge roughly confined to anterior-apical area and with pterostigma pale brown; halter pale yellow. Legs: femora almost entirely black except for short apical pale brownish yellow area; pro- and mesotibiae brownish yellow; pro- and mesotarsomeres 1 – 3 brownish yellow; tarsomeres 4 and 5 dark brown; metatrochanter ventrally with elongated and sharp brownish yellow calcar (at least twice as long as basal width) (Fig. 5 H); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with irregularly scattered smaller setae except for basal 1 / 5, antero-dorsally and postero-ventrally with long white pile, apico-dorsal 1 / 3 area with black setulae; metatibia brownish yellow with medio-ventral 1 / 3 dark brown to black (Fig. 5 H); metataromeres 1 – 3 brownish yellow, tarsomeres 4 and 5 black (Fig. 5 H). Abdomen about 3 x longer than wide (Figs 2 T, 5 F), terga 2 and 3 almost parallel-sided in male (Figs 2 T, 5 F); tergum 2 entirely with orange fascia and tergum 3 apical half with such fascia (Figs 2 T, U, 5 F, G); terga 1 and 4 black (Figs 2 T, 5 F). Male genitalia (Figs 10 I – L, 13 K): surstylus with dorsal lobe 2.5 x as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with spinose setulae (Fig. 10 I – K); ventral lobe widely bulged, apically covered with spinose setulae (Fig. 10 I – K); cercus cordated in profile with long pale pile (Fig. 10 I – K); lingula indistinct (Fig. 13 K); fenestra relatively large and transversely elliptic in outline (Fig. 10 J, K); spur of superior lobe reduced (Fig. 13 K); superior lobe almost symmetrical (Fig. 10 J, K); lateral arms of theca apico-dosally round, with dark funnel-shaped apico-ventral process (Fig. 10 J, K); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 10 L); ejaculatory process short; ejaculatory apodeme narrow (Fig. 10 L).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434544729FCEDFAC19907142C.taxon	description	FEMALE. Similar to male except for the following non-genitalic characters: Head (Fig. 1 U): frons with about anterior 1 / 3 shiny black and bare, posterior 2 / 3 shiny black, covered with yellow pile, medially with transvers yellowish pollinose area; area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) bare but posterior area covered with yellow pile. Leg (Fig. 5 I): metatrochanter without calcar; femora almost entirely black except for short apical reddish yellow area; pro- and mesotibiae reddish yellow; pro- and mesotarsomeres 1 – 3 reddish yellow; tarsomeres 4 and 5 dark brown; metatrochanter without calcar. Abdomen (Fig. 2 U): tergum 2 posteriorly slightly widened.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434544729FCEDFAC19907142C.taxon	materials_examined	Material examined. MONGOLIA: 1 ♂, TOV: S. border of Terelji National Park N 47 ° 48 ’ 39 ” E 107 ° 22 ’ 13 ”, 6. VIII. 2009, HY Han and SW Suk. 1 ♀, Khentii, Binder Canpsite 1037 m, N 48 ° 34 ’ 57 ” E 110 ° 39 ’ 50 ”, 30. VII. 2014, H. Y. Han et al. Distribution. Korea, Japan, Northeast China, Mongolia, Russia, Europe. Remarks. For Korean fauna, this species was recorded only from North Korea (Hoeryeong, Namsulryung, Bukgyesu) by Doi (1938). We, therefore, used Mongolian specimens for the description and photography.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243455472BFCEDF9589CDF174D.taxon	description	Figs 1 Q, 2 Q, 5 O – S, 11 A – D, 13 F	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243455472BFCEDF9589CDF174D.taxon	materials_examined	Diagnosis. This species can be readily distinguished from the other Korean Xylota species by the following characters: 1) two small orange-yellow maculae on tergite 2; 2) two widely rectangular maculae on tergite 3; 3) area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle in male and small area immediately anterior to ocellar triangle in female) covered with yellowish pile (Fig. 1 Q); and 4) scutal area anterior to wing base with black pile. See also Diagnosis of X. abiens. Description. MALE. Body length 12.3 – 13.8 mm; wing length 8.5 – 9.0 mm. Head black; face with dense white pollinosity (Fig. 5 R, S); posterior 1 / 3 of frons anterior to eye contiguity with yellowish white pollinosity (Figs 1 Q, 5 R, S); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) covered with yellowish pile (Fig. 1 Q). Thorax entirely black; scutum subshiny black with appressed short yellow pile, but posterior half sparsely with longer erect white pile mixed with short pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with yellow and apically curly pile and dense yellowish white pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with whitish yellow pollinosity, dorsal posterior area with yellow pile; notopleuron covered with yellow pile; scutal area anterior to wing base with black pile; postalar callus mainly covered with long yellow pile and anterior proximal portion with few black pile; metasternum with yellowish white pruionosity. Wing almost entirely with pale brownish tinge (Fig. 5 O), pterostigma brown; halter with basal half of stem dark brown but posterior stem and knob yellow. Legs: femora black; tibiae dark brown to with basal 1 / 3 pale yellow; pro- and mesotarsomeres 1 and 2 yellow, tarsomere 3 yellow but dorsal half brown, tarsomeres 4 and 5 dark brown to black; metatrochanter with elongated and sharp calcar (at least twice as long as basal width) (Fig. 5 P); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with few spinose setae, antero-dorsally and postero-ventrally with long yellow pile but apico-dorsal 1 / 4 area black setulae; metatarsomeres 1 – 3 yellowish brown, tarsomeres 4 and 5 dark brown to black (Fig 5 P). Abdomen about 3.5 x longer than wide (Figs 2 Q, 5 O), almost parallel-sided but slightly broaden medially, with posteriorly widened tergum 2 (Figs 2 Q, 5 O); preabdominal terga black in ground color; tergum 2 medialy with pair of relatively small roundish orange-yellow maculae, separated from each other roughly by diameter of each macula (Figs 2 Q, 5 O); tergum 3 with pair of larger subrectangular maculae, separated from each other by about 1 / 3 width of each macula (Figs 2 Q, 5 O). Male genitalia (Figs 11 A – D, 13 F): surstylus with dorsal lobe elongated about 1.5 x as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with short setulae (Fig. 11 A – C); ventral lobe of surstylus bulged widely with apex setulose, (Fig. 11 A – C); cercus cordated in profile with long pale pile (Fig. 11 A – C); lingula indistinct (Fig. 13 F); fenestra round in outline (Fig. 11 A – C); spur of superior lobe reduced (Fig. 13 F); superior lobes asymmetric (Fig. 11 A – C); right lateral arm of theca (Fig. 11 C) apically with large ventrally hooked process, apico-ventrally with eaqually large ventrally hooked process but with additional tooth dorso-subapically; left lateral arm of theca (Fig. 11 B) apico-dorsally round and ventrally three denticles; aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 11 D); ejaculatory process short (Fig. 11 D); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243455472BFCEDF9589CDF174D.taxon	description	FEMALE. Unknown.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243455472BFCEDF9589CDF174D.taxon	materials_examined	Type material. HOLOTYPE: ♂, South Korea, Gyeongsangnam-do, Yangsan-si, Ungsang-eup, Simyangsa, N 35 ° 23 ‘ 38 “ E 129 ° 11 ‘ 32 “, 6. VII. 2008, DS Choi (NIBR). PARATYPES. 1 ♂, South Korea, Jeollanam-do, Gwang- yang-si, Ongnyong-myeon, Mt. Baegunsan from jinteul, N 35 ° 6 ‘ 23 “ E 127 ° 37 ‘ 17 “, 23. VI. 2015, Y. B. Lee et al. (YSUW); 1 ♂, Gyeongsangnam-do, Yangsan-si, Yongdanag-dong, Mt. Daeunsan, N 35 ° 24 ‘ 06 “ E 129 ° 12 ‘ 48 “, 3. VII. 2009, HS Lee et al. (NIBR). Distribution. Korea. Remarks. Among about 10 Palaearctic Xylota species with yellow pattern on tergum 2 and 3, this new species appears unique in having a pair of relatively small orange-yellow maculae of tergum 2 as well as a pair of larger subrectangular maculae on the tergum 3 (Figs 2 Q, 5 O). Its male genitalic characteristics (especially the large ventrally hooked process on apex of right leteral arm of theca; Fig. 11 C) further support the new species status. Etymology. The specific epithet is an adjective derived from the Greek ‘ orienti’, meaning eastern, and the Greek ‘ florum’, meaning flower. It is named because this species is similar to the European X. florum (Fabricius, 1805).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243457472CFCEDFA799D9714E5.taxon	description	Figs 1 I, J, 2 I, J, 6 A – E, 11 E – H, 13 J	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243457472CFCEDFA799D9714E5.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243457472CFCEDFA799D9714E5.taxon	materials_examined	Diagnosis. Xylota pseudoignava is similar to X. xanthotarsis sp. n., especially by sharing the silvery pilose patched abdomen (Fig. 2 I, J), while other similar dark colored Korean species have yellowish or white pilose abdominal patches. The former species can be further distinguished from the latter by the following combination of characters: 1) metatarsus dark brown (Fig. 6 C, D) vs. pale yellow (Fig. 7 L, M); and 2) postalar callus of scutum with dense black pile vs. sparse or no such black pile. Male genitalic structures of these species are also closely resembling each other but X. pseudoignava has the hypandrium ventrally with a strong hump (Figs 11 F, G, 13 J) but X. xanthotarsis sp. n. only with a weak hump (Figs 12 J, K, 13 I). Description of Korean material. Male. Body length 12.9 mm; wing length 9.1 mm. Black with silvery white abdominal pollinose patched species. Head black (Fig. 6 F – I); face with dense yellow pollinosity without bare part; posterior 1 / 3 of frons anterior to eye contiguity with yellowish pollinosity (Fig. 1 I); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 I). Thorax entirely black (Fig. 6 A); scutum subshiny black with appressed short yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with dense yellow pile and yellowish pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with whitish yellow pollinosity, upper posterior area with whitish yellow pile; anepimeron covered with yellow pile; katepisternum moderately covered with whitish yellow pollinosity, dorsal posterior area with whitish yellow pile; notopleuron with yellow pile; scutal area anterior to wing base with black and few yellow pile mixed; postalar callus mainly with black pile and posterior with some yellow pile; metasternum bare with yellow pollinosity. Wing with pale brownish tinge on cell r 2 + 3 of wing, pterostigma brown; halter with basal half of stem dark brown but posterior stem and knob yellow. Legs: femora almost entirely black; pro- and mesotibiae yellow and subapico-ventral 2 / 3 dark brown to black; pro- and mesotarsomeres 1 and 2 yellow, tarsomeres 3 – 5 black; metatrochanter ventrally with elongated and sharp calcar (at least twice as long as basal width) (Fig. 6 C); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with two irregular rows of spinose setae except for basal 1 / 5 (anterior row covers whole length but posterior row reaches 2 / 3 length), anterodorsally and postero-ventrally with long yellowish pile, apico-dorsal 1 / 3 area with short and black pile; metatibia dark brown to black and basal 1 / 3 yellowish brown; metatarsus dark brown to black (Fig. 6 C). Abdomen about 4 x longer than wide (Figs 2 I, J, 6 A, B), terga 2 and 3 almost parallel-sided (Figs 2 I, 6 A); terga 2 – 4 with pair of lateral facing triangular areas densely covered with white pollinosity and white erect pile (other areas of terga with short appressed black pile) (Fig. 2 I). Male genitalia (Figs 11 E – H, 13 J): surstylus with dorsal lobe elongated about 1.5 x as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with spinose setulae (Figs 11 E – G); ventral lobe of surstylus blunt but distinctly projected with apex setulose (Fig. 11 E – G); cercus cordated in profile with long pale pile (Fig. 11 E – G); lingula with distinct margin (Fig. 13 J); fenestra transversely elliptic in outline (Fig. 11 E – G); spur of superior lobe reduced; superior lobes almost symmetrical (Fig. 11 F, G); lateral arms of theca about apical half with sparsely scattered spiny setulae, dorsally rounded, apico-ventrally with short tiny protrusion; lateral arms of theca and hypandrium ventrally separated by deep invagination (Fig. 11 F, G); hypandrium ventrally also with strong hump (Fig. 11 F, G); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round; ejaculatory process short (Fig. 11 H); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243457472CFCEDFA799D9714E5.taxon	description	FEMALE. Similar to male except for the following non-genitalic characters: Head (Fig. 1 J): frons with about anterior 1 / 3 shiny black and bare with posterior 2 / 3 shiny black and covered with yellowish pile, medially with pair of areas of white polinosity, except for narrow longitudinal bare area; area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) bare but posterior area covered with yellow pile. Leg (Fig. 6 D): metatrochanter without calcar. Abdomen (Fig. 2 J): terga 2 and 3 medially slightly widen.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243457472CFCEDFA799D9714E5.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Hongcheon-gun, Nae-myeon, Changchon-ri, North valley of Mt. Gyebangsan, Unduryeong, 12. VIII. 2008, SW Suk et al.; 2 ♂, Pyeongchang-gun, Yongpyeon-myeon, Nodong-ri, Nodong Valley 900 m, N 37 ° 42 ’ 08 ” E 128 ° 28 ’ 86 ”, Malaise trap in forest in shade, Tripotin rec., 23. VI. – 3. VIII. 2006, M. Hauser; 1 ♀, Samcheok, Dogye-eup, Dogye-ri, from Amisa Temple to Dusugol, 7. VI. 2003, DS Choi et al. Distribution. Korea (new record), Russia (Southern Siberia, Russian Far East) Remarks. The Korean specimens of this species agree well with the description and genitalic illustration by Mutin & Gilbert (1999).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243450472EFCEDF9119D501041.taxon	description	Figs 1 M, N, 2 M, N, 6 J – N, 11 I – L, 13 M	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243450472EFCEDF9119D501041.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243450472EFCEDF9119D501041.taxon	materials_examined	Description of Korean material. MALE. Body length 9.1 – 10.6 mm; wing length 6.6 – 7.4 mm; brown to dark brown species. Head black; face with heavily yellowish white pollinosity; frons anterior to eye contiguity with dense yellow pollinosity (Fig. 1 M); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 M). Thorax entirely black; scutum subshiny black with short appressed short yellow pile but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with dense white pollinosity and white pile (upper 1 / 3 mixed with yellowish pile); katepisternum moderately covered with white pollinosity, dorsal posterior area with white pile; notopleuron with yellow pile; scutal area anterior to wing base with black pile; postalar callus with long yellow pile; metasternum bare with yellowish white pollinosity. Wing hyaline except for pale brown pterostigma (Fig. 6 L); halter whitish yellow. Legs: femora black; pro- and mesotibiae yellow with subapico-ventral half dark brown area; pro- and mesotarsomeres 1 – 3 yellow, tarsomeres 4 and 5 brown; metatrochanter ventrally with short calcar (subequal to basal width) (Fig. 6 K); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with two rows of spinose setae except for basal 1 / 5 (anterior row cover whole length but posterior row reach to middle); antero-dorsally and postero-ventrally with long yellowish white pile, apico-dorsal 1 / 3 area with short brown pile; metatibia dark brown with basal 1 / 3 yellow, baso-ventral 1 / 3 with irregular rows of short and stout black setulae; metatarsomeres 1 – 3 brown, tarsomeres 4 and 5 black (Fig. 6 K). Abdomen about 3.5 x longer than wide, terga 2 posterior slightly constricted (Figs 2 M, 6 J); terga 2 and 3 each laterally with pair of lateral facing triangular areas covered by yellow erect pile other areas of terga 2 and 3 black with appressed short black pile (Fig. 2 M). Male genitalia (Figs 11 I – L, 13 M): surstylus with dorsal lobe, twice as long as ventral lobe, long finger shaped and slightly bent downward in lateral view, bulged out in middle, densly covered with spinose setulae (Fig. 11 I – K); ventral lobe of surstylus blunt but distinctly projected with apex setulose (Fig. 11 I – K); cercus cordated in profile with long pale pile (Fig. 11 I – K); lingula indistinct (Fig. 13 M); fenestra large and subtriangular in outline (Fig. 11 J, K); spur of superior lobe reduced (Fig. 13 M); superior lobe almost symmetrical (Fig. 11 J, K); lateral arm of theca dorsally rounded with strong to short club-shaped setae (Fig. 11 J, K), apico-ventral apex with two small denticles; aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 11 L); ejaculatory process short (Fig. 11 L); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243450472EFCEDF9119D501041.taxon	description	FEMALE. See “ female description ” of X. fo.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B243450472EFCEDF9119D501041.taxon	materials_examined	Material examined. (Males only; for examined female specimens, see relevant portion for X. fo, which has indistinguishable females from X. spurivulgaris). SOUTH KOREA: Gangwon-do: 1 ♂, Hoengseong-gun, Anheungmyeon, Mt. Chiaksan frm Gangrim 4 - ri to Cheonjibong, 8. VI. 2003, SW Suk and HS Lee; 1 ♂, Hongcheon-gun, Nae-myeon, Mt. Gyebangsan from unduryeong to 1577 m peak, 11. VII. 1999, DS Choi, SK Kim and CH Park; 1 ♂, ditto, 12. VIII. 2003, DS Choi and JS Soh; 1 ♂, Hongcheon-gun, Nae-myeon, Mt. Gachilbong from Sambong- yaksu to 1240 m peak, 27. VII. 2009, JM Jung and YB Lee; Hwacheon-gun, Sanae-myeon, Mt. Gwangdeoksan from Gwangdeok-ri to 1046.3 m peak, 29. VIII. 2000, CH Park and DW Kim; 1 ♂, Inje-gun, Mt. Bangtaesan, Sangnam-my- eon, Bangdong-ri, N. of Guryongduck-bong, 1. VIII. 1996, HY Han and HW Byun; 1 ♂, Inje-gun, Girin-myeon, Mt. Jeombongsan from Jindong-ri to 1424 m peak, 10. VIII. 2001, Han et al.; 1 ♂, ditto, 16. VI. 2004, HW Byun et al.; 1 ♂, ditto, 24. VI. 2009, SW Suk et al.; 1 ♂, Jeongseon-gun, Gohan-eup, Mt. Hambaeksan from Manhang-jae to 1573 m peak, 27. IX. 2011, SW Suk and YB Lee; 2 ♂, Jeongseon-gun, Nam-myeon, Mt. Mindungsan from Yupyeong-ri to 1119 m peak N 37 ° 16 ’ 10 ”, E 128 ° 46 ’ 49 ”, 22. VIII. 2011, YB Lee, DH Kim and HS Lee; 1 ♂, Samcheok-si, Dogye-eup, from Gwangmyeongsa to Sangdeok-ri, b. VI. 2003, DS Choi et al.; 1 ♂, Wonju-si, Maeji-ri, Hwaechon, 12. VI. 1998, HY Han and SK Kim; 1 ♂, Wonju-si, Heungeop-myeon, Maeji-ri, Yonsei Univ. Wonju Campus, 11. VI. 2000, SK Kim and CH Park; 2 ♂, ditto, 27. V. 2009, HS Lee; 1 ♂, ditto, 30. V. 2009, DJ Cha, JM Jung and HS Lee; 2 ♂, ditto, 2. VI. 2009, HS Lee et al.; 1 ♂, ditto, 18. VI. 2009, YB Lee. Gyeongsangbuk-do: 1 ♂, Yeongyang-gun, Irwol-myeon, Mt. Irwolsan from Iljabong to woljabong, N 36 ° 48 ’ 20 ” E 129 ° 06 ’ 17 ”, 15. VII. 2014, YB Lee et al. Jeollabuk-do: 1 ♂, Namwon-si, Sannae-myeon, Mt. Jirisan, Jeongryeongchi, 1,212 m, 17. VII – 29. VIII. 2001, DS Ku; 2 ♂, ditto, 11. VII – 5. IX. 2001, DS Ku; 1 ♂, ditto, 5. IX – 30. X. 2001, DS Ku. Distribution. Korea (new record), Japan, Russian Far East. Remarks. This species has been often misidentified as X. coquilletti in the past. Even the only paratype of the X. coquilletti turned out to be a misidentification (Mutin & Gilbert, 1999). They, therefore, identified this paratype as X. amamiensis Shiraki (1968). However, Mutin & Ichige (2014) later synonymized X. amamiensis with X. coquilletti and described a new species for the paratype of the X. coquilletti as X. danieli. However, Yang & Cheng (1998) already described this species as X. spurivulgaris based on the Chinese type series. The original descriptions and illustrations of X. spurivulgaris and X. danieli, including male genitalic characters, are almost identical for both nominal species, and we believe that such level of similarity is highly likely to indicate conspecifity. However, formal synonymization of X. danielli is pending until a more extensive taxonomic investigation including examination of the type material is conducted. Currently, females of this species are not distinguishable from those of X. fo (see Diagnosis and Specimens examined of X. fo).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434524720FCEDFD6C9F541062.taxon	description	Figs 1 R, S, 2 R, S, 6 O – W, 12 A – D, 13 H	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434524720FCEDFD6C9F541062.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434524720FCEDFD6C9F541062.taxon	materials_examined	Diagnosis. This species can be readily distinguished from the other Korean Xylota species by the following characters: 1) terga 2 and 3 each with a pair of large orange-yellow maculae almost touching each other (Figs 2 R, S, 6 O, P); 2) the area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle in male and small area immediately anterior to ocellar triangle in female) bare (Fig. 1 R, S); 3) scutal area anterior to wing base with yellow pile; and 4) anterior 2 / 3 of anterior anepisternum bare. See Diagnosis of X. abiens. Description of Korean material. MALE. Body length 9.3 mm; wing length 6.62 mm; dark brown to black species with pale orange-yellow abdominal maculae. Head black (Fig. 6 T, U); face with dense yellow pollinosity; posterior half of frons anterior to eye contiguity with yellowish pollinosity (Figs 1 R, 6 T, U); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 R). Thorax entirely black; scutum subshiny black, covered with short appressed yellow pile; anterior 2 / 3 of anterior anepisternum bare and posterior 1 / 3 covered with yellowish pollinosity; posterior anepisternum with yellowish pollinosity and white pile (upper 1 / 2 mixed with yellowish pile); anepimeron covered with white pile; katepisternum moderately covered with white pollinosity, dorsal posterior area with white pile; notopleuron with yellow pile; scutal area anterior to wing base with yellow with few black pile mixed; postalar callus with yellow pile; metasternum almost bare with white pollinosity. Wing entirely with pale brownish tinge, pterostigma pale brown (Fig. 6 O); halter with basal 1 / 3 of stem dark brown but posterior stem and knob yellow. Legs: femora almost entirely dark brown to black; pro- and mesotibiae yellow and subapico-ventral 3 / 5 dark brown; pro- and mesotarsomeres 1 – 3 yellow, tarsomeres 4 and 5 brown; metatrochanter ventrally with short calcar (subequal to basal width) (Fig. 6 Q); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with irregular smaller spinose setae except for basal 1 / 5, antero-dorsally and postero-ventrally with long whitish yellow pile, apico-dorsal 1 / 3 area with short and dark brown pile; metatibia dark brown and basal 1 / 3 yellowish brown; metatarsomeres 1 and 2 dorsally dark brown and apico-ventrally brownish yellow (Fig. 6 Q); tarsomere 3 dorsally dark brown and ventrally brownish yellow; tarsomere 4 and 5 black (Fig. 6 Q, R). Abdomen about 3.5 x longer than wide (Figs 2 R, 6 O), terga 2 and 3 almost parallel-sided but with slightly widened posterior (Figs 2 R, 6 O); preabdominal terga dark brown in ground color; tergum 2 with pair of large reddish yellow maculae covering almost 60 – 80 % of tergum with their posterior half almost touching each other and anterior half cut away as inverted triangular shape; tergum 3 with pair of square reddish yellow maculae covering about anterior half of tergum, almost touching each other. Male genitalia (Figs 12 A – D, 13 H): surstylus with dorsal lobe, elongated about 1.5 x as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with spinose setulae (Fig. 12 A – C); ventral lobe of surstylus blunt but distinctly projected with apex setulose (Fig. 12 B, C); cercus cordated in profile with long pale pile (Fig. 12 A – C); lingula indistinct (Fig. 13 H); fenestra small and elongated elliptic (Fig. 12 B, C); spur of superior lobe reduced (Fig. 13 H); superior lobes almost symetrical (Fig. 12 B, C); lateral arms of theca elongated and crooked down with blunt apex, apico-dorsally round and bulged with small spinose pile, dorsally with few denticles in varying size (Fig. 12 B); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round; ejaculatory process short (Fig. 13 H); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434524720FCEDFD6C9F541062.taxon	description	FEMALE. Similar to male except for the following non-genitalic characters: Head (Fig. 1 S): frons with about anterior 1 / 3 shiny black and bare with posterior 2 / 3 shiny black and covered with whitish yellowish pile, medially with pair of areas of yellowish pollinosity except for medially narrow longitudinal bare area; area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) bare but posterior area covered with yellow pile. Leg (Fig. 6 R): metatrochanter without calcar. Abdomen (Fig. 6 P): terga 2 and 3 posteriorly widen.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B2434524720FCEDFD6C9F541062.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Samcheok-si, Hajang-myeon, Mt. Jungbongsan N 37 ° 26 ’ 19 ” E 128 ° 55 ’ 34 ”, 8. IX. 2008, YB Lee et al.; 1 ♀, Hongcheon-gun, Nae-myeon, Changchon-ri, North valley of Mt. Gyebangsan, 14. VIII. 2009, JM Jung and YB Lee. Distribution. Korea (new record), Russia (From Altay to Kuril Isles), widely distributed in whole Europe. Remarks. The genitalic structures of the Korean male (Figs 12 C) agree with the illustration of Hippa (1968) as well as the illustrations and description by Stubbs & Falk (2002) and Bartsch et al. (2009). Xylota tarda seems to be closely related to X. filipjevi (see Remarks for the latter species).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345C4721FCEDFD919E5D108D.taxon	description	Figs 1 A, B, 2 A, B, 7 A – I, 12 E – H, 13 A	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345C4721FCEDFD919E5D108D.taxon	materials_examined	Species new to Korea	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345C4721FCEDFD919E5D108D.taxon	materials_examined	Diagnosis. Among Korean Xylota species, X. umbrosa is most similar to X. hauseri sp. n., especially having the purplish lustrous tinge on their black abdominal terga and the apex of the left arm of theca in male genitalia apicodorsally round. However, X. hauseri sp. n. can be distinguished from X. umbrosa by the following characters: 1) male abdomen more or less parallel-sided but never medially constricted (Figs 2 F, 5 A); 2) right lateral arm of theca apico-dorsally with finely serrated (Fig. 12 G). See also Diagnosis of X. hauseri sp. n. Description of Korean material. MALE. Body length 11.6 – 13.8 mm; wing length 9.0 – 10.1 mm. Head black (Fig. 7 F, G); face with dense white pollinosity without bare part; posterior 1 / 5 of frons anterior to eye contiguity with yellowish white pollinosity (Fig. 1 A); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 A). Thorax entirely black; scutum subshiny black with appressed short yellow pile, but posterior half sparsely with longer erect brownish pile mixed with short pile; anterior anepisternum covered with white pollinosity; posterior anepisternum with white pile and white pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with yellowish white pollinosity, dorsal posterior area with white pile; notopleuron with yellow pile; scutal area anterior to wing base covered with black pile; postalar callus with yellow pile; metasternum bare with white pruionosity. Wing almost entirely with pale brownish tinge, pterostigma brown (Fig. 7 E); halter pale yellow. Legs: femora almost entirely black; tibiae dark brown to black with basal 1 / 3 yellow; pro- and mesotarsomere 1 and 2 yellow, tarsomere 3 yellow and apical half dark brown, tarsomeres 4 and 5 black; metatrochanter ventrally with short and sharp calcar (subequal to basal width) (Fig. 7 C); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining ventral area with two irregular rows of spinose setae except for basal 1 / 5 (anterior row cover whole length but posterior row reach 2 / 3 length), antero-dorsally and postero-ventrally with long brown and white mixed pile, apico-dorsal 1 / 3 area with brown setulae; metatarsus dark brown to black (Fig. 7 C). Abdomen about 3.5 x longer than wide; preabdominal dorsum with purplish lustrous tinge (Figs 2 A, 7 A); terga 2 and 3 almost parallel-sided (Fig. 2 A); tergum 2 and 3 with black appressed short black pile except laterally areas covered by white erect pile. Male genitalia (Figs 12 E – H, 13 A): surstylus with dorsal lobe elongated about 1.5 x as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with setulae, right lobe basally thicken (Fig. 12 E – G); ventral lobe of surstylys widely bulged, apically with short setulae (Fig. 12 F, G); cercus cordated in profile with long pale pile (Fig. 12 E – G); lingula indistinct (Fig. 13 A); fenestra elliptic in outline (Fig. 12 F, G); spur of superior lobe reduced (Fig. 13 A); superior lobes asymmetrical (Fig. 12 F, G); right lateral arm of theca (Fig. 12 G) with two dorsal thorny processes with 3 pale pile in between, also with serrated apico-ventral area; left lateral arm of theca (Fig. 12 F) with baso-dorsal thorny process and apico-dorsally round apex and with 3 pale pile in between, also with apico-ventrally serrated area; aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally enlarged (Fig. 12 H); ejaculatory process short (Fig. 12 H); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345C4721FCEDFD919E5D108D.taxon	description	FEMALE. Similar to male except for the following non-genitalic characters: Head (Fig. 1 B): frons with about anterior 1 / 3 shiny black and bare with posterior 2 / 3 shiny black and covered with yellowish pile, medially with pair of areas of white pollinosity, except for narrow longitudinal bare area; area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) bare but posterior area covered with yellow pile. Leg (Fig. 7 D): metatrochanter without calcar. Abdomen (Fig 2 B) terga 2 and 3 posteriorly slightly widened.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345C4721FCEDFD919E5D108D.taxon	materials_examined	Material examined. SOUTH KOREA: Gangwon-do: 1 ♂, Hoengseong Dunnae-myeon, Mt. Cheongtaesan Sapgyo-ri to 1200 m peak, 5. VII. 2003, DS Choi et al.; 1 ♂, Hongcheon Nae-myeon, Mt. Gyebangsan Undoryeong, 12. VIII. 2008, SW Suk et al.; 1 ♂, Hongcheon-gun, Nae-myeon, Changchon-ri, North valley of Mt. Gyebangsan, 27. V. 2007, HS Lee et al.; 1 ♀, Jeongseon-gun, Jeongseon-eup, Hoedong-ri, 37 ° 25 ’ 59 ” N 128 ° 33 ’ 49 ” E, 7. VI. 2011, HS Lee, YB Lee, DH Kim; 1 ♂, Jeongseon-gun, Nam-myeon, Mt. Mindungsan from Yupyeong-ri to 1119 m peak, 37 ° 16 ’ 10 ” N 128 ° 46 ’ 49 ” E, 31. V. 2002, DS Choi and HW Byun; 2 ♂, ditto, 31. V. 2006, HY Han et al.; 8 ♂, ditto, 6. VI. 2006, HY Han et al.; 1 ♂, ditto, 20. VI. 2006, HY Han et al.; 1 ♂, ditto, 7. VII. 2007, HY Han et al.; 1 ♂, ditto, 13. VI. 2008, HS Lee et al.; 2 ♂, ditto, 27. VI. 2008, JS Lim et al.; 1 ♂, ditto, 12. V. 2012, HY Han et al.; 1 ♂, Samcheok Dogye-eup from Sinbangteo to Mt. Dohwasan, 925 m, 1. VIII. 2003, DS Choi et al. Distribution. Korea (new record), Russian Far East. Remarks. The Korean specimens agree with the original description (Violovitsh, 1975) as well as the genitalic illustration by Mutin & Barkalov (1999).	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345D4724FCEDFCB89ECC13D1.taxon	description	Figs 1 G, H, 2 G, H, 7 J – R, 12 I – L, 13 I	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345D4724FCEDFCB89ECC13D1.taxon	materials_examined	Diagnosis. Xylota xantotarsis is similar to X. pseudoignava, especially by sharing the silvery pilose patched abdomen (Fig. 2 I, J), while other similar dark colored Korean species have yellowish or white pilose abdominal patches. The former species can be further distinguished from the latter by the following combination of characters: 1) metatarsus pale yellow (Fig. 7 L, M); 2) postalar callus of scutum with sparse or no black pile; and 3) hypandrium of male genitally ventrally with a weak hump (Figs 12 J, K, 13 I). See Diagnosis of X. pseudoignava. Description. MALE. Body length 12.9 – 14.9 mm; wing length 9.9 – 10.6 mm. Head black (Fig. 7 O, P); face heavily covered with white pollinosity but slightly bare under antenna; posterior 1 / 3 of male frons anterior to eye contiguity with yellowish pollinosity (Fig. 1 G); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile (Fig. 1 G). Thorax entirely black; scutum subshiny black, covered with short appressed yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with yellowish pollinosity; posterior anepisternum with yellowish pollinosity and light yellowish pile (upper 1 / 2 area mixed with yellow pile) anepimeron mostly covered with white pile but upper 1 / 3 yellow pile; katepisternum moderately covered with yellowish white pollinosity, dorsal posterior area with white pile; notopleuron with brownish yellow pile; scutal area anterior to wing base with yellow pile with few black pile mixed; postalar callus mainly with long pale yellow pile and only anterior area with few black pile; metasternum bare with yellowish brown pollinosity. Wing hyaline except for brown pterostigma; halter pale yellow. Legs: pro- and mesotibiae yellow and subapico-ventral 4 / 5 dark brown to black; pro- and mesotarsomere 1 – 3 yellow, tarsomeres 4 and 5 black; male metatrochanter ventrally with elongated and sharp calcar (at least twice as long as basal width) (Fig. 7 L); apico-ventral 1 / 3 of metafemur with two carinae covered with spinose setulae, remaining apical 4 / 5 areas with two irregular rows of spinose setae (anterior row cover whole length but posterior row reach 2 / 3 length); antero-dorsally and postero-ventrally with long white pile, apico-dorsal 1 / 3 area with black setulae; metatibia dark brown to black and basal 1 / 3 yellow (Fig. 7 L); metatarsomeres 1 – 3 yellow, tarsomeres 4 and 5 black (Fig. 7 L). Abdomen about 4 x longer than wide (Figs 2 G, 7 J), terga 2 and 3 almost parallel-sided (Figs 2 G, 7 J); terga 2 – 4 black with pair of lateral facing silvery gray pollinose triangular areas covered with white erect pile (other areas of terga with short appressed black pile) (Fig. 2 G, H). Male genitalia (Figs 12 I – L, 13 I): surstylus with dorsal lobe elongated about twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densely covered with setulae (Fig. 12 J, K); ventral lobe of surstylus widely bulged with apex setulose (Fig. 12 J, K); cercus cordated in profile with long pale pile (Fig. 12 I – K); lingula indistinct (Fig. 13 I); fenestra round in outline (Fig. 12 J, K); spur of superior lobe reduced (Fig. 13 I); superior lobes symmetrical (Fig. 12 J, K); lateral arms of theca about apical half with sparsely scattered spiny setulae, dorsally rounded, apico-ventrally with short tiny protrusion; lateral arms of theca and hypandrium ventrally separated by deep invagination (Fig. 12 J, K); hypandrium ventrally with small protrusion (Fig. 12 J); aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round (Fig. 12 L); ejaculatory process short (Fig. 12 L); ejaculatory apodeme apically enlarged and bowl shaped.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345D4724FCEDFCB89ECC13D1.taxon	description	FEMALE. Similar to male except for the following non-genitalic characters: Head (Fig. 1 H): frons with about anterior 1 / 3 shiny black and bare with posterior 2 / 3 shiny black and covered with yellowish pile, medially with pair of areas of white pollinosity, except for narrow longitudinal bare area; area anterior to ocellar triangle (small area immediately anterior to ocellar triangle) bare but posterior area covered with yellow pile. Leg (Fig. 7 M): metatrochanter without calcar. Abdomen (Fig. 2 H): terga 2 and 3 almost parallel-sided but medially widen.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
5A219B24345D4724FCEDFCB89ECC13D1.taxon	materials_examined	Type material. HOLOTYPE: ♂, South Korea, Gangwon-do, Hongcheon-gun, Nae-myeon, Daedong, Mt. Gye- bangsan, 6. VIII. 1997, HY Han et al. (NIBR). PARATYPES: 1 ♂, South Korea, Gangwon-do: 1 ♂, Chuncheon-si, Nam-myeon, Balsan-ri, 300 m, N 37 ° 43 ’ 29 ” E 127 ° 37 ’ 73 ”, Malaise trap in forest in shade, Tripotin rec., 17. V. – 6. VI. 2006, M. Hauser (CSCA); 1 ♂ Hongcheon-gun, Nae-myeon, Daedong, Mt. Gyebangsan, 6. VIII. 1997, HY Han et al. (NIBR); 1 ♀, ditto, 6. VIII. 1997 HY Han et al. (NIBR); 1 ♂, Jeongseon Nam-myeon, Mt. Mindungsan from Yupyeong-ri to 1119 m peak, 37 ° 16 ‘ 10 “ N 128 ° 46 ‘ 49 “ E, 9. VIII. 2001, HY Han et al. (NIBR); 1 ♂, ditto, 19. VII. 2005 HY Han and KE Ro (YSUW); 1 ♀, Samcheok, Dogye-eup, from Sinbangteo to Mt. Dohwasan, 925 m, 8. VI. 2003, DS Choi et al. (YSUW); 1 ♂, Wonju-si, Heungeop-myeon, Maeji-ri, Yonsei Univ. Wonju Campus, 10. VI. 1996, HW Byun (YSUW); 1 ♀, ditto, 7. VI. 2003, DS Choi and HW Byun. Jeollanam-do: Gwangyang-si, Ongnyong-myeon, Mt. Baegunsan from Jinteul, 35 ° 6 ‘ 23 “ N, 127 ° 37 ‘ 17 “ E, 23. VI. 2015, YB Lee et al. (YSUW); 2 ♂, ditto, 31. V. 2006, HY Han et al. (YSUW); 8 ♂, ditto, 6. VI. 2006, HY Han et al. (YSUW); 1 ♂, ditto, 20. VI. 2006, HY Han et al. (YSUW); 1 ♂, ditto, 7. VII. 2007, HY Han et al. (YSUW), 1 ♂, ditto, 13. VI. 2008, HS Lee et al. (YSUW); 2 ♂, ditto, 27. VI. 2008, JS Lim et al. (YSUW); 1 ♂, ditto, 12. V. 2012, HY Han et al. (YSUW); 1 ♂, Samcheok Dogye-eup from Sinbangteo to Mt. Dohwasan, 925 m, 1. VIII. 2003, DS Choi et al. (YSUW). Distribution. Korea. Remarks. In the Palaearctic region, X. pseudoignava and X. caeruleiventris Zetterstedt, 1838 appear to be most closely related to this new species by sharing the silvery pilose patched abdominal tergites 2 – 4 and very similar male genitalia (i. g., Figs 11 E – H vs. 12 I – L). Separation of this new species is based on the pale yellow basal tar- someres of the metatarsus while the other two species have an entirely dark-brown metatarsi, in addition to their slightly but significantly different male genitalic structures (See Diagnosis of X. pseudoignava and X. xanthotarsis sp. n.). Another species, X. jakutorum Bagatshanova, 1980, seems to be also closely related to the new species because it also has similar male genitalia (especially the hump on hypandrium; illustration of Vujić & Milankov, 1999: 125). This species can be easily separated by the light colored abdominal pattern in dark background in males from the above three species. Etymology. The specific epithet is an adjective derived from the Greek ‘ xantho’ meaning yellow, and the Greek ‘ tarsi’ meaning tarsus, referring to yellow metatarsus.	en	Jeong, Soo-Hyun, Han, Ho-Yeon (2019): A taxonomic revision of the genus Xylota Meigen (Diptera: Syrphidae) in Korea. Zootaxa 4661 (3): 457-493, DOI: 10.11646/zootaxa.4661.3.3
