Phyllomya aristalis ( Mesnil & Shima, 1978 )

Phyllomya aristalis ( Mesnil & Shima, 1978) View in CoL

( Figs 3 View FIGURES 3–7 , 15 View FIGURES 12–20 , 24 View FIGURES 21–29 , 58 View FIGURES 55–58 , 75 View FIGURES 73–78 , 105 View FIGURES 101–111 , 131–132 View FIGURES 127–138 )

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

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

Phyllomya aristalis: Mesnil & Shima 1979: 486 View in CoL (homonymy and synonymy of P. elegans Villeneuve View in CoL ); 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.