taxonID	type	description	language	source
AA0487B00E6C3E7D09EBFCD65C30FA2F.taxon	description	(Fig. 1)	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E6C3E7D09EBFCD65C30FA2F.taxon	materials_examined	Material examined. HONSHU: Tochigi Pref.: 1 ♂, Nakagawa, Bato, 36 ° 47 ' N 140 ° 10 ' E, coll. larva on Quercus serrata, 30. IV. 2018, mat. 7. V., em. 27. III. 2019, S. Ibuki; 1 ♂, same data except em. 5. IV. 2019. Tokyo Met.: 1 ♀, Hodokubo, Hino-shi, Tokyo, 16. IV. 2003, H. Takahashi. Larva. Middle instar (Fig. 1 C – E): Head black with frontal surface creamy white; mandible and antenna mostly black; trunk slightly greenish creamy white, dorsal midline darker and lateral margins and ventral midline whitish; lateral and dorsal prothoracic shields marked with black; cervical sclerite, thoracic legs and subanal appendage black; last abdominal sternum narrowly blackish. Late instar (Fig. 1 F – H): Head pale brown with frontal surface pale olive and lateral surface marked with dark brown; mandible and antenna mostly dark brown; trunk sordid greenish white, dorsal midline darker; lateral prothoracic shield and cervical sclerite marked with black; thoracic legs and subanal appendage whitish. Mature larva (Fig. 1 I, J): Head, including mandible and antenna, olive; trunk, thoracic legs and subanal appendage vivid pale green; lateral prothoracic shield and cervical sclerite marked with black. Distribution. Japan (Hokkaido, Honshu), Russia (Primorskij kraj), Korea and China (Zhejiang province). Host plant. Fagaceae: Quercus acutissima Carruth. (Shinohara, 1980), Q. crispula Blume var. crispula (Shinohara, 1993), Q. serrata Murray (new record). Field observations and rearing records. On April 30, 2018, Ibuki found a nest of gregarious pamphiliid larvae on a small tree of Q. serrata in Nakagawa Town, Tochigi Prefecture. The nest was located at the apex of a branch near the top of the tree and contained three middle instar larvae. The nest was originally made of one young leaf loosely folded below with silk. After rearing in a container for a few days, adjacent leaves were added to form a partly web nest (Fig. 1 A). On the midvein on the undersurface of the original nest leaf, remains of two eggshells were found (Fig. 1 B). The two eggshells were found far apart and another eggshell was probably present on the halfway between them, suggesting that the eggs were laid on the midvein in a row with some space between them but not in a compact group. On May 2, the larvae probably molted because the head color changed from black to pale brown (Fig. 1 F, G). On May 3, one of the three larvae died. On May 7, two larvae matured (Fig. 1 I, J) and soon entered the soil. One male each emerged on March 27 and April 5, 2019. On May 8, 2019, a larval nest was found on Q. serrata in Kitazawa, Wami, with only one late-instar larva inside. Weather the larva was originally solitary or gregarious was not confirmed. To check if the larva also feeds on Q. acutissima, only the leaves of Q. acutissima were given to the larva on May 9 and thereafter. The larva fed on Q. acutissima without apparent problems and matured on May 14. No adult emerged in the following year. On May 13, 2019, a gregarious larval nest, containing four larvae, was found on Q. acutissima in Wami. Three larvae matured on May 21 and one larva matured on May 22. Three parasitoid wasps emerged on April 17 to 21, 2020. Variation of the adults. The two male adults obtained by rearing in this work lived in larval stage in the same nest and therefore are doubtless offsprings of the same female. They are about the same size and quite similar in structure but differ in coloration. One of them (emerged on March 27) has the head and hind femur (except for the trochantellus) entirely black and the pale areas on the mandibles and legs distinctly greenish, whereas the other specimen (emerged on April 5) has the clypeus and the hind femur (on apical dorsal surface) marked with creamy white. The former is more similar to the only previously known male (Shinohara, 1980; Shinohara et al., 2022, fig. 20), though the latter old specimen collected in 1960 has no distinct greenish tint on the mandible and legs and the antennal scape largely marked with creamy white ventrally. Therefore, the coloration of the clypeus, antennal scape and hind femur in the three known male specimens are not quite stable. Remarks. Neurotoma atrata was described from two females collected in Gifu Prefecture, Honshu, Japan (Takeuchi, 1930). Shinohara (1980) examined nine females (one specimen from Mabashi was wrongly cited as a male) and one male from Honshu, Japan, and four females from Korea. Two females, one each from Japan and Korea, were reared specimens and the host was lKunugiz (= Q. acutissima). This species was later recorded from Primorskij kraj, Russia, based on one female and one male specimens by Shinohara (1992). Shinohara (1993) described N. harai based on two female and one male specimens, all of them, except one female, reared from larvae feeding on l Quercus mongolica var. grosseserrata z in Hokkaido. Shinohara (1993) distinguished N. atrata and N. harai by the different color patterns of the frons, antennal scape and legs, host plants and distribution. Since 1993, two females and one male of l N. harai z have become available from Japan (Shinohara, 1997; Katayama, 2004; Anonymous, 2023) and here we add one female and two reared males of l N. atrata z with a new host plant record of Q. serrata. From Korea and China, collection records of three females were added (Shinohara and Lee, 1997; Shinohara and Xiao, 2006; Shinohara and Tripotin, 2021). After a close examination of all currently available information, we conclude that all the specimens previously identified as N. atrata and N. harai belong to the same species and the two names are synonymous (Neurotoma harai Shinohara, 1980 = Neurotoma atrata Takeuchi, 1930, new synonym). The addition of the new material, though small in number, has shown that the distinguishing characters used to separate N. atrata and N. harai by Shinohara (1993) are variable as discussed above. Neurotoma atrata, thus newly defined, is distributed in Japan (Hokkaido, Honshu), Russia (Primorskij kraj), Korea and China (Zhejiang province) and the larvae feed on Q. acutissima, Q. crispula var. crispula and Q. serrata. The larva of N. atrata is distinguished from that of N. mandibularis, feeding on Quercus robur L. (Green, 2023), by the pale brown or olive head and the lack of black areas on the dorsal prothoracic shield in the late feeding instar and after maturation (Fig. 1 F – J). The larva feeding on lSangsurinamuz (= Q. acutissima) determined as l Caliroa oishii (Takeuchi) z (Tenthredinidae) by Lee and Chung (1997) is probably N. coreana, because the photograph of the adult on the same page is probably this species. This larva is similar to that of N. atrata but differs from it in having the head and the lateral prothoracic shield nearly concolorous to the trunk. An undetermined pamphiliid larva on Q. mongolica photographed in Korea by Sohn (2006) is very similar to the middle instar larva of N. atrata (Fig. 1 C – E), though the last abdominal sternum of this Korean specimen has no blackish spot. This Korean larva may possibly belong to N. atrata, and in this case Q. mongolica is also a host plant of N. atrata.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E6E3E7A0A3EF9C75C13F8D9.taxon	description	(Fig. 2 D, E) Distribution. Japan (Honshu, Shikoku, Kyushu). New record from Tottori Prefecture (see Remarks below). Host plant. Rosaceae: Rubus crataegifolius Bunge (Shinohara and Kojima, 2009), R. peltatus Maxim. (new record; see Remarks below). Remarks. Shinohara and Kojima (2009) reported on the bionomics of this sawfly. On September 2, 2023, Shinohara found two leaf-rolls of pamphiliid larvae on a leaf of R. peltatus (Fig. 2 D, E) in Kagamiganaru, Tottori Prefecture. The leaf-rolls contained one larva each, and the larvae were identified as O. esakii when they matured on September 7. The mature larvae were well characterized by the head black and the prothoracic shields and the last abdominal segment without black areas and perfectly agreed with O. esakii as described by Shinohara and Kojima (2009). This observation represents the first distribution record of O. esakii from Tottori Prefecture and the first host plant record of R. peltatus for the species.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E683E7B0999FF3A5D41FBD3.taxon	description	(Fig. 2 A – C) Host plant. Rosaceae: R. crataegifolius (Okutani and Fujita, 1956; Shinohara and Kojima, 2009), R. microphyllus L. f. (Hara and Shinohara, 2017). R. peltatus (new record; see Remarks below). Remarks. Bionomics of this species was studied by Okutani and Fujita (1956), Shinohara and Kojima (2009) and Hara and Shinohara (2017). On September 2, 2023, Shinohara found one larval leaf-roll of this species on a leaf of R. peltatus (Fig. 2 A, B) in Kagamiganaru, Tottori Prefecture. The leaf-roll was loose and contained one late-instar larva and frass (Fig. 2 C). The larva had the head entirely black and the prothoracic shields and both the dorsal and ventral sides of the terminal abdominal segment marked with black (Fig. 2 C). This color pattern is characteristic of O. viriditibialis (Okutani and Fujita, 1956; Shinohara and Kojima, 2009). Rubus peltatus is the first host plant record for the sawfly.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E683E7B098AFBAC5C9CF8D9.taxon	materials_examined	Material examined. HONSHU: Tochigi Pref.: 7 ♀ 1 ♂ listed in Table 1. Ibaraki Pref.: 3 ♀ listed in Table 1. SHIKOKU: Tokushima Pref.: Ochiai-toge, Miyoshi, 8. VI. 2021, A. Watanabe. For more records, see Shinohara and Zhou (2006) and Anonymous (2023). Larva. Early instar (Fig. 3 C): Head black; trunk creamy white. Late instar (Fig. 3 D, G): Head and antenna pale olive. Trunk greenish white; dorsal prothoracic field dark olive; lateral prothoracic shield and cervical sclerite black; thoracic legs and subanal appendage creamy white; lateral basin of suranal plate, suranal hook and subanal plate blackish. Mature larva (Fig. 3 H): Head pale olive or pale brownish green with antennae dark brown. Trunk including all appendages vivid pale green; dorsal prothoracic field concolorous to head or blackish; lateral prothoracic shield and cervical sclerite black; lateral basin of suranal plate, suranal hook and subanal plate dark olive to black; central basin of suranal plate often blackish. Distribution. Japan (Honshu, Shikoku, Kyushu). New record from Ibaraki Prefecture and Tokushima Prefecture. Host plant. Sapindaceae: Acer pictum Thunb. (Shinohara and Okutani, 1983), A. amoenum Carrière var. amoenum (new record), A. palmatum Thunb. (new record), A. pictum Thunb. subsp. dissectum (Wesm.) H. Ohashi f. connivens (G. Nicholson) H. Ohashi (new record). Life history. The collection records of over 1000 specimens (Shinohara and Zhou, 2006; Anonymous, 2023) show that the adults are active in the field mainly in May, the earliest record being April 21, 2007, in the lowland of Hiratsuka City, Kanagawa Prefecture and the latest record being July 10 – 13, 1995, in Hachimantai (ca. 1000 – 1300 m alt.), Iwate Prefecture. In Nakagawa, Tochigi Prefecture, the larvae of this species were found in late May to early July, they matured in mid-June to late July, and the adults emerged in mid-April to early May of the following year (Table 1). This species is regarded as univoltine as other pamphiliine sawflies. The larva is a solitary leaf-roller (Fig. 3). The leaf-roll is made always on the underside of the leaf. It is a specialized, tight, screw-like tube, with the apex closed (Fig. 3 E, F; type b of Viitasaari, 2002 b). The late instar larva occasionally moves onto another leaf carrying the screw-like abode. Remarks. Shinohara and Okutani (1983) first recorded the host plant of this species, but the immature stages and biology have not been studied before. As shown above, P. komonensis may be associated with various species of maples. This pamphiliid is widely distributed in Honshu, Shikoku and Kyushu (Shinohara and Zhou, 2006; Anonymous, 2023). Here we record this species from Ibaraki Prefecture and Tokushima Prefecture for the first time.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E6B3E7609F7FA2F5E1DFD94.taxon	description	(Fig. 4) Material examined. HOKKAIDO: 1 ♀, Chitose, Horoka, 42 ° 54 ' N 141 ° 47 ' E, coll. larva on Cerasus sargentii var. sargentii 24. VIII. 2022, mat. 25. VIII., em. 23. IV. 2023, H. Hara. Larva. Late instar (Fig. 4 A, B): Head black, laterally dark brown; trunk opaque, blackish, broad lateral margins and apical segment pale brown; paired transverse lines of four or six small tubercles on each segment and numerous small subtriangular projections along lateral margin white; prothoracic segment dorsally with paired white projections along anterior margin; four long subtriangular projections along apical margin of last abdominal segment. Mature larva (Fig. 4 C): Pale reddish brown, surface smooth, without small tubercles or projections. Distribution. Japan (Hokkaido, Honshu). New record from Hokkaido. Host plant. Rosaceae: Cerasus sargentii (Rehder) H. Ohba var. sargentii (new record). Remarks. This species was described from Tokyo, central Honshu (Shinohara, 2002 b) and later recorded from Hyogo Prefecture, western Honshu (Okutani, 1954, as A. albicinctus; Naito et al., 2004, as A. albicinctus; Yoshida, 2014 b) and Tochigi Prefecture, central Honshu (Katayama, 2011). This is the first distribution record from Hokkaido. The type series of this species was collected on cherry trees (Shinohara, 2002 b) but the immature stages and host plant were unknown. The larva (Fig. 4) has not been clearly differentiated from the larva of A. albicinctus (Anonymous, 2014).	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E653E760994FD6E5C01FECC.taxon	description	(Fig. 5) Material examined. HONSHU: Tochigi Pref.: 1 ♀, Nakagawa, Wami, 36 ° 46 ' N 140 ° 10 ' E, coll. larva on Rhododendron kaempferi var. kaempferi 9. VI. 2022, mat. 14. VI., em. 30. III. 2023, S. Ibuki. Host plant. Ericaceae: Rhododendron molle (Blume) G. Don subsp. japonicum (A. Gray) K. Kron. (Shinohara et al., 2015), R. kaempferi Planch. var. kaempferi (new record). Remarks. The female specimen examined agrees with the holotype of E. takeuchii except that it has partly blackish trochanters and trochantelli. The lancet of this specimen (Fig. 5) is almost identical with that of the holotype (fig. 19 in Prous et al., 2011). Rhododendron molle subsp. japonicum was recorded as a host plant of this species in Hokkaido (Shinohara et al., 2015) and R. kaempferi Planch. var. kaempferi is newly recorded here as a host plant in Honshu. Empria takeuchii is likely to feed also on other Rhododendron species.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E653E760A25FEA65B2DFB8C.taxon	materials_examined	Material examined. HONSHU: Tochigi Pref.: 2 ♀, Nakagawa, Wami, 36 ° 47 ' N 140 ° 10 ' E, coll. larvae on Quercus serrata 3. V. 2022, mat. 7, 8. V., em. 26, 29. III. 2023, S. Ibuki. Host plant. Fagaceae: Q. acutissima (Hara and Ibuki, 2022), Q. serrata (new record). Oviposition. One of the emerged females stated above was kept alive in a cage with a twig of Q. serrata. The female laid eggs into the current-year shoot. Remarks. We here record the new host (Q. serrata) and the previously unknown oviposition site for this species. This and the following species belong to the F. quercivora group, whose members are associated with deciduous species of Quercus and have one generation per year, with the adults emerging in early spring and females laying eggs on the current year`s shoots (Hara and Ibuki, 2022; present study).	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E653E770A15FB665E27FE3C.taxon	materials_examined	Material examined. HONSHU: Tochigi Pref.: 1 ♀, Nakagawa, Koisago, 36 ° 47 ' N 140 ° 08 ' E, coll. larva on Q. serrata 5. V. 2022, coc. 9. V., em. 27. III. 2023, S. Ibuki. Host plant. Fagaceae: Q. acutissima (Hara and Ibuki, 2022), Q. serrata (new record). Oviposition. The emerged female mentioned above laid eggs into the current-year shoot of Q. serrata in a cage. Remarks. The new host (Q. serrata) and the previously unknown oviposition site are reported here for this species. See also the remarks of the preceding species.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E643E7709EBFDF65E4AFB49.taxon	materials_examined	Material examined. HONSHU: Tochigi Pref.: 1 ♀, Nakagawa, Yamata, coll. larva mining leaf of Alnus hirsuta var. hirsuta 28. V. 2023, mat. 31. V., em. 16. VI. 2023, S. Ibuki. Host plant. Betulaceae: Alnus fauriei H. Lév. et Vaniot (Togashi, 1972), A. hirsuta Turcz. var. hirsuta (new record), A. japonica (Thunb.) Steud. (Okutani, 1959, 1967). l Alnus rugosa, A. incana, A. glutinosa z in Europe (Taeger et al., 1998). Remarks. This Holarctic species is associated with various species of Alnus (Okutani, 1959, 1967; Togashi, 1972; Taeger et al., 1998), but A. hirsuta var. hirsuta has not been recorded as a host plant so far.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E643E770BC6FF3A5B54FB49.taxon	description	(Fig. 6 A – B) Material examined. HONSHU: Tochigi Pref.: 1 ♀, Nakagawa, Wami, coll. larva on Q. serrata 19. V. 2011, mat. 22. V., em. 10. IV. 2012, S. Ibuki (Fig. 6 A – B) (cited by Naito, 2020); 1 ♀, same data but, Wami, 36 ° 47 ' N 140 ° 10 ' E, coll. larva 3. V. 2021, mat. 5. V., em. 27. III. 2022. Larva. Final feeding-instar (Fig. 6 A – B): Yellow green almost entirely; spines white; bifurcate spines apically pale gray, but those on dorsum of thorax apically black; bifurcate spines relatively long, about 1 / 4 as long as height of trunk; subspiracular lobe with two simple spines; surpedal lobe with two simple spines. Host plant. Fagaceae: Q. aliena Blume (Yoshida, 2014 a), Q. crispula (Shinohara and Hara, 2020), Q. serrata (new record). Remarks. Although the female specimen examined differs from the original description in having an entirely black mesepisternum, we regard the color difference as an intraspecific variation. The larva observed by us (Fig. 6 A) is similar to the larva of P. erythrogramma figured by Yoshida (2014 a, fig. 4). We here record a new host (Q. serrata) for this species.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E7409FFFF3A5D1DFC34.taxon	description	(Fig. 6 C – E) Material examined. HONSHU: Tochigi Pref.: 1 ♀, Nakagawa, Wami, 36 ° 46 ' N 140 ° 10 ' E, coll. larva on Quercus serrata 7. V. 2019, mat. 17. V., em. 10. IV. 2020, S. Ibuki (Fig. 6 C – E). Larva. Final feeding-instar (Fig. 6 C – D): Yellow green almost entirely; spines completely white; bifurcate spines relatively long, about 1 / 5 as long as height of trunk; subspiracular lobe with anterior spine bifurcate, posterior spine simple; surpedal lobe with two simple spines. Mature larva (Fig. 6 E): Yellow green almost entirely, without spines. Host plant. Fagaceae: Q. serrata (new record). Remarks. The host plant and larva of P. shiritakensis have been unknown until now. The larva of this species is similar to the larva of P. erythrogramma in having an entirely yellow green head and trunk, but they are easily distinguished by the color and shape of the spines.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E740832FBCF5D12F91F.taxon	materials_examined	Material examined. HONSHU: Tochigi Pref.: 3 ♂, Nakagawa, Ouchi, 36 ° 44 ' N 140 ° 14 ' E, coll. larva on Ampelopsis glandulosa var. heterophylla 22. VI. 2021, mat. 15 – 22. VII., em. 27. IV. 2022, S. Ibuki; 1 ♂, same data but mat. 20. VII., em. 29. IV. 2022; 1 ♂, same data but 22. VII., em. 1. V. 2022. Host plant. Vitaceae: Ampelopsis glandulosa (Wall.) Momiy. var. heterophylla (Thunb.) Momiy. (new record). For more records, see Hara et al. (2021). Remarks. Siobla ferox is a polyphagous sawfly previously known to feed on six species of five families of plants (Hara et al., 2021). This is the first record of Vitaceae and Ampelopsis glandulosa var. heterophylla as the host of S. ferox.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E740A21FEEF5D83FA11.taxon	vernacular_names	Japanese name: Akaashi-kubinaga-kibachi	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E740A21FEEF5D83FA11.taxon	materials_examined	Material examined. HOKKAIDO: 1 ♂, Shimizu, 42 ° 58 ' N 142 ° 50 ' E, dead standing tree of Cerasus sp., coll. 5. IX. 2019, em. 25. V. 2020, H. Hara; 1 ♀, same data but em. 29. V. 2020; 1 ♀, same data but em. 31. V. 2020; 1 ♀, same data but em. 4. VI. 2020; 1 ♀, same data but em. 10. VI. 2020; 1 ♀, same data but em. 13. VI. 2020. HONSHU: Tochigi Pref.: 1 ♀, Shobugahama, Nikko, 26. VI. 2019, S. Maehara.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E740A21FEEF5D83FA11.taxon	distribution	Distribution. Europe, Russia (Sakhalin), Korea, Japan (Hokkaido, Honshu: Gunma, Tochigi, Yamanashi, Nagano prefectures). New record from Tochigi Prefecture.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E740A21FEEF5D83FA11.taxon	biology_ecology	Host plant. Rosaceae: Cerasus sp. (new record based on adult emergence). Previous European records with good evidence are Acer campestre, Alnus spp., Betula verrucosa, Ulmus carpinifolia, Quercus, Ostrya carpinifolia, Populus (Schimitschek, 1974). Previous Japanese records for l X. camelus z (e. g., Okutani, 1967) refer to one or more of the three closely related species (Shinohara and Kameda, 2019) and thus need confirmation.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E740A21FEEF5D83FA11.taxon	discussion	Remarks. There are uncertain European records of lKirschez (Schimitschek, 1974) or Prunus spp. (Eichhorn, 1982; Taeger et al., 1998) as a host plant of X. camelus. Schimitschek (1974) included lKirsche (Rudow, 1878) z in the list of host plants of X. camelus and mentioned lRudow (1888) zog X. camelus aus Weide und Kirschez. However, Rudow (1878, 1888) never referred to lKirschez as a host plant of this species.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E673E750A2BF9E25E91FCC4.taxon	materials_examined	Material examined. HONSHU: Nagano Pref.: 1 ♀ 1 ♂, Yumine, 1350 m, Takayama, em. from dead branch of Alnus hirsuta 23. VII. 2023, H. Kojima; 1 ♀, Karasawa, 1700 m, Kyowa, Saku, dead branch of Betula ermanii, coll. 11. VIII. 2023, em. 23. VIII. 2023, A. Shinohara. Host plant. Betulaceae: Betula grossa Siebold et Zucc. (Shinohara and Kameda, 2019), B. ermanii Cham. (new record), Alnus hirsuta Turcz. (new record). Juglandaceae: Juglans mandschurica Maxim. var. sachalinensis (Komatsu) Kitam. (Shinohara and Kameda, 2019). Remarks. This is the commonest species of Xiphydriidae in Japan, sometimes found in numbers on dead or cut trunk of alders or birches in Hokkaido and on mountains in Honshu. The host plant records for X. eborata based on good evidence (observation of oviposition or adult emergence) are B. grossa and J. mandschurica (Shinohara and Kameda, 2019), and B. ermanii and A. hirsuta are newly added here.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
AA0487B00E663E7509D0FC6C5EBAFA54.taxon	materials_examined	Material examined. KYUSHU: Miyazaki Pref.: 1 ♀, Ôkôchi, Shiiba, 24. V. 1974, K. Kanmiya (Museum of Nature and Human Activities, Hyogo, Sanda). Distribution. Japan (Honshu, Kyushu). New record from Kyushu. Remarks. Pleroneura itoi was described from a female holotype collected on Mt. Wasamatayama, Nara Prefecture, southwestern Honshu (Shinohara, 2016) and no additional collection records have been available since. This is the first record of P. itoi from Kyushu.	en	Bourke, Joanna (2024): Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan IX. Bulletin of the National Museum of Nature and Science. Series A, Zoology 50 (1): 19-32, DOI: 10.50826/bnmnszool.50.1_19, URL: http://dx.doi.org/10.16995/ntn.647
