taxonID	type	description	language	source
0332879E6B524B33FE98FDF0FF5133DC.taxon	distribution	Distribution: China (Sichuang)	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B524B33FE98FC97FFCA32E1.taxon	distribution	Distribution: Japan (Hokkaido, Honshu).	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B524B33FE98FB9AFCA73456.taxon	distribution	Distribution: Japan (Hokkaido, Honshu), Corea (Sudong-myeon), pro-Russian (Sakhalin, Kunashir).	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B524B33FE98FA10F9F637F4.taxon	description	Matsumyia nigrifascies; Kim, 1980: 386.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B524B33FE98FA10F9F637F4.taxon	distribution	Distribution: Japan (Hokkaido, Honshu), Corea, pro-Russian (Sakhalin, Kunashir)	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B524B33FE98F88FFF4E3659.taxon	distribution	Distribution: China (Shaanxi).	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B514B31FE98FB21FED9365C.taxon	diagnosis	Diagnosis. Abdomen broadly oval. The 2 nd abdominal tergite marked with triangular orange spots laterally, with inner ends separated broadly. The 3 rd tergite marked with small orange spots at base laterally, with a pair of narrow, elongate, transverse white pruinosity bands situated nearly in the middle laterally, broadly separating medially. The 4 th tergite decorated with a pair of short lateral white pruinosity bands in the middle laterally. Adult. ɗ (Ψ unknown). Body length 15 mm, wing length 12 mm.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B514B31FE98FB21FED9365C.taxon	description	Head. Black in ground color; broader than thorax. Eyes bared, shortly confluent on frons. Vertex narrow, elongate, covered with black hairs. Ocellar triangle situated at the middle of vertex. Occiput clothed with yellowish white hairs and tomentum. Frons small with longitudinal furrow medially, protruded conspicuously, with sparse black hairs and whitish yellow tomentum laterally but bare anteriorly. Lunule reddish yellow. Face deeply concave below frontal prominence in profile, almost straight below facial tubercle, with facial tubercle rounded. Face sparsely yellow pilosed along eye margins and below eyes, with whitish yellow tomentum most part, but shiny black laterally. Eye orbits extended from below eyes up to the level of upper margin of facial tubercle, with a small spot of whitish yellow tomentum just below eyes. Antennae tawny, with basal 2 segments pilosed dorsally and ventrally, first flagellomere shorter than basal 2 segments together, broader than long. Arista bare, long, dull brown but yellowish brown at basal 1 / 3. Thorax. Scutum densely covered with grey yellow pruinosity concealing the ground color, with a pair of longitudinal grey yellow pollen stripes in the middle anteriorly, extending over transverse suture. Dorsum of mesothorax clothed with long whitish yellow hairs, which longer on postalar callus. Scutellum decorated with whitish yellow pruinosity and dense long hairs. Mesopleuron black with proepisternum, anepisternum posteriorily, katepisternum anteriorly and posteriorly, anepimeron dense yellow pollinose and long pilose. Metasternum covered with long yellow hairs and pruinosity. Fore legs with coxae and trochanters black, femora black with yellow brown apex, conspicuously thickened, covered with whitish yellow hairs which longer at base posteriorly, tibiae and tarsi dull brown with yellow brown hairs, tibiae darkened at apical half, tarsi with segments 3 – 5 black brown dorsally. Middle legs similar to fore legs, but femora with long hairs posteriorly, tarsi with segment 5 black brown. Hind legs with coxae and trochanters black, coxae with whitish yellow pruinosity and hairs, trochanters shiny, with short, sparse hairs, femora distinctly thickened at the middle, black, with brownish yellow hairs except long whitish yellow hairs anterodorsally, black spines ventrally and more denser nearly at apical part, a row of long yellow hairs separating broadly and evenly on the ventral bilaterally, tibiae compressed laterally, bent slightly with a obtuse tooth at apical margin inside, tibiae and tarsi black brown. Wings hyaline, with cell R 1 open, vein r 4 + 5 straight, cell R 5 distinctly petiolar, upper and lower cross-vein parallel with margin of wing, vein r-m oblique, situated behind the middle of cell M 2, stigma vein present. Abdomen. Black, broadly oval, covered with short, adpressed black hairs for most part. The 1 st tergite densely covered with whitish yellow pruinosity and hairs. The 2 nd tergite with yellow hairs basally and laterally, marked with triangular orange spots laterally, of which the inner ends separated broadly. The 3 rd tergite marked with small orange spots at base laterally and a pair of narrow, elongate, transverse white pruinosity bands situating nearly at the middle laterally, with inner ends broadly separated. The 4 th tergite decorated with a pair of short bands of white pollen at the middle laterally. The 5 th tergite covered with grey pruinosity basally. Venter black, covered with grey pruinosity and spots, basal 2 segments with sparse, long, yellow hairs.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B514B31FE98FB21FED9365C.taxon	materials_examined	Type material. Holotype ɗ, deposited in BKLSUT. China, Sichuan Province, Muyang, Nanjiang County, 800 m, 2005. viii. 1, Keke Huo.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B514B31FE98FB21FED9365C.taxon	etymology	Etymology. The specific epithet refers to two pairs of yellow spots and white pollen bands on abdomen.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B514B31FE98FB21FED9365C.taxon	distribution	Distribution. China (Sichuan Province).	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B514B31FE98FB21FED9365C.taxon	discussion	Remarks. The new species can be separated from other species of the genus by abdomen with two pairs of yellow spots and white pollen bands.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B574B34FE98FBA4FFB93661.taxon	diagnosis	Diagnosis. Male with vertex black pilose; female face dark reddish brown, legs reddish brown at most part. Adult. Body length 15 mm (ɗ) or 13 mm (Ψ), wing length 11 mm (ɗ) or 12 mm (Ψ).	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B574B34FE98FBA4FFB93661.taxon	description	Head. Black in ground color, slightly broader than thorax. Eyes bared, shortly confluent on frons. Vertex narrowly elongate with black hairs. Ocellar triangle located at the middle of vertex. Occiput covered with whitish yellow hairs and tomentum. Frons small with longitudinal furrow medially, protruded conspicuously, covered with sparse yellow hairs and whitish yellow tomentum laterally but bared anteriorly. Lunule reddish yellow. Face deeply concave below frontal prominence in profile, almost straight below facial tubercle, with facial tubercle rounded, decorated with sparse yellow hairs along eye margins and whitish yellow tomentum most part but shiny black below eyes, thinly yellow pilosed laterally. Eye orbits extended from below eyes up to the level of upper margin of facial tubercle, with a small spot of whitish yellow tomentum just below eyes. Antennae tawny, with basal 2 segments pilosed dorsally and ventrally, first flagellomere shorter than basal 2 segments together, broader than long. Arista bare, long, dull brown but yellowish brown at basal 1 / 3. Thorax. Scutum densely covered with greyish yellow pruinosity concealing the ground color, with a pair of longitudinal greyish yellow pollen stripes in the middle anteriorly, extending over transverse suture. Dorsum of mesothorax clothed with long whitish yellow hairs, which longer on postalar callus. Scutellum decorated with whitish yellow pruinosity and dense long hairs. Mesopleuron black, with proepisternum, anepisternum posteriorily, katepisternum anteriorly and posteriorly, anepimeron densely white pollinose and long yellowish pilose. Metasternum covered with long white hairs and pruinosity. Fore legs with coxae and trochanters black, femora conspicuously thickened, black except yellow brown apically, with whitish yellow hairs which longer at base posteriorly, tibiae and tarsi dull brown with yellow brown hairs, tibiae darker at apical half, tarsi with segments 3 – 5 black brown dorsally. Middle legs similar to fore legs, but femora with longer hairs posteriorly, tarsi with segment 5 black brown. Hind legs with coxae and trochanters black, coxae with white pruinosity and hairs, trochanters bare, femora distinctly thickened at the middle, black but yellow brown on apex, with brownish yellow hairs and longer whitish yellow hairs anterodorsally, black spines ventrally, and more denser near apex, a row of long yellow hairs separating broadly and evenly on the ventral bilaterally, tibiae reddish brown to dull brown, compressed laterally, bent slightly, with a obtuse tooth at apical margin inside, tarsi reddish brown with segment 5 black dorsally. Wing hyaline, with indistinct stripe-shaped yellow brown marks, cell R 1 open, vein r 4 + 5 straight, cell R 5 distinctly petiolar, upper and lower cross-vein parallel with margin of wing, vein r-m oblique, located behind the middle of cell M 2, stigma vein present. Abdomen. Black, broadly oval, flattened. The 1 st tergite densely clothed with whitish yellow pruinosity and hairs. The 2 nd tinged with reddish brown, covered with whitish yellow pruinosity at anterior corner extending to posterior 1 / 3 along lateral margins, with short, adpressed black hairs except long hairs at base laterally. The 3 rd tergite with reddish brown reflection, covered with yellow, adpressed short hairs, and greyish yellow pruinosity forming a pair of quadrate spots in the middle. The 4 th tergite with adpressed, short yellow hairs, densely covered with greyish yellow pollen but thinner anteriorly, and a pair of triangular black spots in the middle laterally. Apical part of abdomen black with yellow hairs. Venter black, covered with greyish yellow pruinosity and sparse long yellow hairs on basal 2 sternites. Male genitalia. Brownish black, asymmetry. Epandrium black, rounded, inflated dorsally. Cerci yellowish brown, broader at apex, covered with long yellow hairs. Surstyli brown, broadened basally and tapered apically, with ventral margin concave, undulated, decorated with short, black spines apically, and long, dull yellow hairs on outside surface at base and short, black bristly hairs on inside surface. Hypandrium cylindrical. Superior lobe quadrate apically, with ventral margin triangularly concave at the middle. Aedeagus showed as Figs. 9 and 10. Female. Vertex narrow, space between eyes at posterior margins about 1 / 10 of head in width, ocellar triangle convex. Frons black pilosed, covered with white tomentum along eye margins. Face dark reddish brown, lustrous, pruinosity and tometum absent, protruded forwardly and downwardly at lower half, eye orbit narrow, reddish brown pilosed. Legs reddish brown, with hind femora dull in color, covered with brown hairs. Abdomen black, thinly pollinose, the 1 st tergite reddish brown at anterior corner laterally, the 4 th tergite with reddish brown pruinosity and hairs. Other characters same as in male.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B574B34FE98FBA4FFB93661.taxon	materials_examined	Type material. Holotype ɗ, deposited in BKLSUT. China, Shaanxi Province, Mt. Zibai, Liuba County, 2100 m, 2003. vii. 4, Keke Huo. Paratypes: 1 Ψ, deposited in BKLSUT. China, Shaanxi Province, Mt. Zibai, Liuba County, 2100 m, 1988. vi. 18, Keke Huo.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B574B34FE98FBA4FFB93661.taxon	etymology	Etymology. The specific epithet refers to the type location, Mt. Zibai.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B574B34FE98FBA4FFB93661.taxon	distribution	Distribution. China (Shaanxi Province).	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
0332879E6B574B34FE98FBA4FFB93661.taxon	discussion	Remarks. The new species resembles to Matsumyia nigriofacies Shiraki, 1949, but can be separated from the latter by male vertex with black pilose, female face dark reddish brown; legs most part reddish brown. In Matsumyia nigriofacies, male vertex with yellow pilose, female face and legs black.	en	Huo, Keke, Ren, Guodong (2006): A key to known species of Mastumyia Shiraki (Diptera, Syrphidae) from China, with descriptions of two new species. Zootaxa 1374: 61-68, DOI: 10.5281/zenodo.174968
