Tachinus (Tachinus) elongatus Gyllenhal, 1810

Hashizume, Takuto, Schülke, Michael & Maruyama, Munetoshi, 2024, Tachinus of Japan (Coleoptera: Staphylinidae: Tachyporinae): new records, a new synonym, and a new species, Acta Entomologica Musei Nationalis Pragae 64 (1), pp. 121-139 : 130

Tachinus (Tachinus) elongatus Gyllenhal, 1810

[Japanese name: Naga-marukubi-hanekakushi]

( Fig. 1J )

Tachinus elongatus Gyllenhal, 1810: 251 (original description); LI (1995a): 55 (redescription).

Mycetoporus kobai Kano, 1933: 99 (original description); SCHȖLKE (2004): 949 (synonymized with T. elongatus ).

See LI (1995a) for complete synonymy.

Material examined. JAPAN: HOKKAIDO: 1 ♀, Chiroro-dake, Hidaka-chô, 23.vii.1993, K.Haga leg.( KUM); 1 ♁, same data, but 24.vii.1993 ( KUM); 1 ♁, Kamishihoro-eki, Kamishihoro-chô, 17–21.vii.1989, K. Haga leg. ( KUM); 1 ♀, Tokachi-Mitsumata, Kamishihoro-chô, 16–19. vii.1997, S. Naomi leg. ( KUM); 2 ♁♁, the south ridge of Upepesanke- -yama (1610–1700 m alt.), Kamishihoro-chô, 13.vii.1995, K. Haga leg. ( KUM); 1 ♀, head of Chisenbetsu-sawa, Kitoushi-yama (1050 m alt.), Rikubetsu-chô, 11–26.vii.1992, K. Haga & K. Shibata leg. ( KUM).

Diagnosis. Tachinus (Tachinus) elongatus can be distinguished from other members of the subgenus Tachinus from Japan by the combination of the following characters: body slender, subparallel; tergites III–V with a pair of pruinose spots; parameres of aedeagus distinctly curved ventrally, not narrowed apicad in lateral view. For detailed redescription see LI (1995a: 55).

Biology. KAMIMURA & HAYASHI (2014) reported that this species was collected by a carrion trap.

Distribution. Japan (Hokkaido, Honshu), China, Russia, Mongolia, Caucasus, Europe, USA. This species is distributed in montane to alpine zones in mainland Japan.

Figures

Fig. 1. Habitus of Tachinus spp.A – T. punctiventris Sharp, 1888; B – T. diminutus Sharp, 1888; C – T. iriomoensis Li, 1994; D – T. kobensis Cameron, 1933; E – T. naomii Li, 1994; F – T. nigriceps nigriceps Sharp, 1888; G – T. yamato (Hayashi, 2003); H – T. bidens Sharp, 1888; I – T. bipustulatus (Fabricius, 1792); J – T. elongatus Gyllenhal, 1810; K – T. gelidus Eppelsheim, 1893; L – T. japonicus Sharp, 1888. Scale bars = 1.0 mm.