Phyllomya aristalis ( Mesnil & Shima, 1978 )

Shima, Hiroshi, Zhang, Wenxia & Tachi, Takuji, 2022, A systematic study of Old World Phyllomya Robineau-Desvoidy (Diptera: Tachinidae), Zootaxa 5099 (4), pp. 401-449 : 414-415

Phyllomya aristalis ( Mesnil & Shima, 1978)

( Figs 3 , 15 , 24 , 58 , 75 , 105 , 131–132 )

Myiostoma elegans Kolomiets, 1973: 91 . Junior secondary homonym of Phyllomya elegans Villeneuve, 1937 .

Gibsonomyia aristalis Mesnil & Shima, 1978: 313 . Holotype male (BLKU, examined). Type locality: Japan, Nagano Pref., Shinhotaka.

Phyllomya aristalis: Mesnil & Shima 1979: 486 (homonymy and synonymy of P. elegans Villeneuve ); Herting, 1984: 155 (Palearctic catalog); Shima 1988:16 (Japanese tachinid species); Herting & Dely-Draskovits 1993: 387 (Palearctic catalog); Shima 2000: 491 (tachinids of Imperial Palace); Richter 2004: 368 (tachinids of Russian Far East); Shima 2006: 287 (tachinids of Imperial Palace); Shima 2014: 836 (Japanese catalog); Shima & Hara 2016: 5 (tachinids of Saitama).

Diagnosis. Head almost holoptic in male, dichoptic in female; antennal pedicel with a long seta almost as long as total length of antenna; arista rather long plumose, total width including plumosity subequal in width to postpedicel; parafacial with dense, black hairs; palpus dark brown; 3 postsutural dorsocentral setae; 2, rarely 3, katepisternal setae; mid tibia with 2 anterodorsal setae; hind tibia with 3 preapical dorsal setae.

Redescription. Body length: 6.2–11.0 mm.

Male. Terminalia: Sixth tergite strongly concave mid-dorsally on anterior margin, with 2 pairs of strong setae; surstylus broad, with very weakly narrowed to truncated apex and dense, long hairs; cerci in dorsal view broad along basal 1/3 then narrowed to apex, completely fused along basal 1/4 with suture obliterated, narrowly separated along apical 1/3, in lateral view narrowed at basal 1/3 and weakly curved ventrally; pregonite very weakly and roundly produced posteriorly; basiphallus shorter than distiphallus, epiphallus narrow, shorter than basiphallus, dorsal sclerite of distiphallus flat, apical membranous portion very short, at most 1/4 as long as sclerite. Female. Terminalia: Sixth tergite 1.5 times as long as 7th tergite, concave mid-dorsally on anterior margin, with strong setae on posterior 1/4; 6th sternite with hairs on posterior 1/2 and strong marginal setae; 7th tergite broadly divided into 2 hemitergites, with a row of seta on posterior margin; 7th sternite slightly shorter than 6th sternite, with several short setae on posterior margin; 8th hemitergite fused with hypoproct on posteromedian portion and ventrally with 8th sternite.

Description of first instar larva. Body length: 10.0– 10.5 mm; cephaloskeleton rather broad in apical 1/3 and narrowed to a pointed apex, dorsal margin sharply convex in apical 1/2; 2nd thoracic segment with 4–5 rows of fine anterodorsal spinules; 7th abdominal segment with 6–7 posterodorsal rows of spinules that are almost continuous with posteroventral rows of spinules.

Type material examined. Holotype ♂ of Gibsonomyia aristalis Mesnil & Shima : Japan-Honshu / Shinhodaka / Hida / 14.vii.1969 / A. Nagatomi ( BLKU) . Paratypes of G. aristalis : Japan, Honshu : 1 ♂, Gunma, Oze , 3.vii.1975, 3.vii.1975, O. Yata ( KUM) ; 1 ♀, Nagano, Karuizawa , 11.vii.1966, Y. Miyatake ( KUM) ; 1 ♀, same data as holotype ( BLKU) ; 1 ♂, Yamanashi, Kanayama , 22.vii.1970, M. Honda ( KUM) ; 1 ♀, Tamba, Johokumura , 29.vi.1951, A. Nagatomi ( KUM) ; Kyushu : 1 ♀, Miyazaki, Wanizukayama , 23.v.1966, A. Tanaka ; 1 ♂, Kagoshima, Mt. Takachiho , 6.vi.1965, A. Tanaka ; 1 ♀, Kagoshima City, Terayama , 10.v.1966, A. Tanaka ; 1 ♀, Kagoshima City, Hiyamizu , 20.vi.1962, A. Nagatomi ( KUM) .

Additional material examined. Japan, Hokkaido: 1 ♂ , Kamitoshibetsu, Ashoro , 17.viii.1996, T. Tachi; 1 ♂ , Akkesi, Bonto , 10.vii.1977, K. Yamagishi ( KUM); Honshu: 1 ♀ , Saitama, Ohtaki, Mt. Taihei , 12.viii.1994, K. Hara; 1 ♂, 1 ♀ , Saitama, Moroyama-machi, Iwai , 20.v.1980, 24.v.1979, C. Tamaki ( KUM); 2 ♂♂, 5 ♀♀ , Tokyo, Imperial Palace , 1–22.v.1997, Malaise Trap ( NSMT); 3 ♂♂, 3 ♀♀ , same data as preceding, 10.v.1999, 12.v.2005, 14.v.2001, 16.v.2002, H. Shima, S. Shinonaga & T. Nambu ( KUM, NSMT); 1 ♂ , Hyogo Pref., Sasayama , 20.vi.1952, K. Iwata ( KUM); Kyushu: 1 ♂ , Fukuoka Pref., Dazaifu City, Mt. Shioji , 4.v.2016, H. Shima; 2 ♂♂ , Kumamoto Pref., Shi- ibagoe, 23.v.1997, 3.vi.1996, T. Tachi; 1 ♀ , Kagoshima City, Iso , 8.v.1965, A. Tanaka; 1 ♀ , Kagoshima Pref., Mt. Nomadake, Kasasa , 15.v.1996, M. Sueyoshi; 1 ♂ , Kagoshima Pref., Yamagawa, Mt. Washiodake , 17.v.1996, M. Sueyoshi ( KUM) .

Distribution. Japan (Hokkaido, Honshu, Kyushu), Far East Russia (Primorye).

Remarks. This species occurs in the late spring to early summer in Japan. In general appearance it resembles the Nepalese species P. gibsonomyioides Crosskey, 1974 , but can be distinguished from it by the abdominal dorsum with narrow pruinose bands and hind tibia with 3 preapical dorsal setae.

Figures

FIGURES 3–7. Male terminalia of Phyllomya spp. 3. Epandrial structure of P. aristalis (Mesnil & Shima), ventral view; bs = bacilliform sclerite. 4. 6th tergite, 6th sternite and syntergosternite 7+8 of P. albipila Shima & Chao, lateral view. 5. 6th tergite and syntergosternite 7+8 of P. annularis (Villeneuve), dorsal view. 6. 5th sternite, 6th tergite and syntergosternite 7+8 of P. rufiventris Shima & Chao, lateral view. 7. Same, P. elegans Villeneuve. Scale bars: 0.1 mm.

FIGURES 12–20. Epandrium, surstylus and cerci of Phyllomya spp., lateral view. 12. P. albipila Shima & Chao (after Shima & Chao 1992). 13. P. angusta Shima & Chao (after Shima & Chao 1992). 14. P. annularis (Villeneuve). 15. P. aristalis (Mesnil & Shima) (after Mesnil & Shima 1978). 16. P. elegans Villeneuve. 17. P. formosana Shima (after Shima 1988). 18. P. gibsonomyioides Crosskey. 19. P. gymnops (Villeneuve). 20. P. humilis Shima (after Shima 1988). Scale bars: 0.1 mm.

FIGURES 21–29. Epandrium, surstylus and cerci of Phyllomya spp., dorsal view. 21. P. albipila Shima & Chao (after Shima & Chao 1992). 22. P. angusta Shima & Chao (after Shima & Chao 1992). 23. P. annularis (Villeneuve). 24. P. aristalis (Mesnil & Shima) (after Mesnil & Shima 1978). 25. P. elegans Villeneuve. 26. P. formosana Shima (after Shima 1988). 27. P. gibsonomyioides Crosskey. 28. P. gymnops (Villeneuve). 29. P. humilis Shima (after Shima 1988). Scale bars: 0.1 mm.

FIGURES 55–58. Hypandrium, pre- and postgonite and phallus of Phyllomya spp., lateral view. 55. P. albipila Shima & Chao (after Shima & Chao 1992). 56. P. angusta Shima & Chao (after Shima & Chao 1992). 57. P. annularis (Villeneuve). 58. P. aristalis (Mesnil & Shima) (after Mesnil & Shima 1978). Scale bar: 0.1 mm.

FIGURES 73–78. Male 5th sternite of Phyllomya spp., ventral view. 73. P. albipila Shima & Chao (after Shima & Chao 1992). 74. P. annularis (Villeneuve). 75. P. aristalis (Mesnil & Shima) (after Mesnil & Shima 1978). 76. P. elegans Villeneuve. 77. P. formosana Shima (after Shima 1988). 78. P. gibsonomyioides Crosskey. Scale bars: 0.1 mm.

FIGURES 101–111. Adult habitus/male head of Phyllomya spp., left lateral view. 101. P. albipila Shima & Chao. 102. P. annularis (Villeneuve). 103–104. P. arctogena Shima & Tachi, sp. nov. 105. P. aristalis (Mesnil & Shima). 106–107. P. chaoi Shima & Zhang, sp. nov. 108. P. elegans Villeneuve. 109. P. formosana Shima. 110. P. gibsonomyioides Crosskey (female). 111. P. gymnops (Villeneuve).

FIGURES 127–138. First instar larva and cephaloskeleton of Phyllomya spp., lateral view. 127–128. P. annularis (Villeneuve). 129–130. P. arctogena Shima & Tachi, sp. nov. 131–132. P. aristalis (Mesnil & Shima). 133–134. P. chaoi Shima & Zhang, sp. nov. 135–136. P. gibsonomyioides Crosskey. 137–138. P. gymnops (Villeneuve).Abbreviations: T2 and T3 = thoracic segments 2 and 3. A1 to A7 = abdominal segments 1 to 7.