Tachinus (Tachinus) mimulus Sharp, 1874

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 : 132-134

Tachinus (Tachinus) mimulus Sharp, 1874

[Japanese name: Kiberi-marukubi-hanekakushi]

( Fig. 2C )

Tachinus mimulus Sharp, 1874: 16 (original description); LI (1995a): 71 (redescription).

See LI (1995a: 71) for complete synonymy.

Material examined. JAPAN: HOKKAIDO: 3 ♁♁, the left bank of Ofuntarumanai-gawa (240–320 m alt.), Esashi-chô, 27.vii.2018, K. Haga leg.( KUM);1 ♁, Hakodate, 13.v.1971,Y.Hirano leg.( KUM);1 ♁, Nemuro Shibetsu, 18.vii.1977, S.Naomi leg.( KUM); 1 ♀, Koma-ga-dake,Oshima, 30.vi.1991, S. Nomura leg. ( KUM); 1 ♀, Minami-kitoushi, Ashoro-chô, 9.viii.1991, K. Haga leg. ( KUM); 2 ♁♁, Onne intake weir of Metô No. 2 power plant,Minamikitousi,Ashoro-chô, 9.vii.1991, K.Haga leg.( KUM); 1 ♁, the point where 5-no-sawa flows into Nukabira-ko,Kamishihoro-chô, 9.vii.2005, K. Haga leg. ( KUM); 1 ♀, Chitose-shi, 1.viii.1994, Y. Hagino leg. ( KUM); 1 ♀, Yûbetsu-gawa, Engaru, 27.vii.1999, S. Ômomo leg. ( KUM); 2♁♁ 1 ♀, Ôsawaguchi,Nopporo-shinrin-kôen,Ebetsu-shi, 30.VI– 13.vii.1993, S. Hori leg.( KUM); 1 ♁, Nopporo, Ebetsu-shi, 17.v.2000, M. Maruyama leg.( KUM); 1 ♁, Nopporo F.P., Ebetsu-shi, 5.vii.2000, S. Hori leg.( KUM); 1 ♀, same data, but 5–11.vii.2000 ( KUM);1 ♁, same data, but 19–28.x.2000 ( KUM); 1 ♀, Nopporo Forest Park, Ebetsu-shi, 24.vii.2001, S. Hori leg. ( KUM); 1 ♀, same data,but 10.x.2001 ( KUM); 1 ♀, same data, but 24.x.2001 ( KUM); 5 exs., Nopporo Forest, Ebetsu-shi, x.–xi.2006, T. Lackner leg. (cSch); 1 ex., Nopporo Forest Park, Sapporo-shi, 28.iv.2007, T.Lackner leg.(cSch); 1 ex., Nopporo, 7.vi.2008, T. Lackner leg.(cSch); 1 ex., Sapporo env., Nopporo Virgin Forest, x.2009,T.Lackner leg.(cSch); 6 ex., Nopporo Virgin Forest,Sapporo env., x.2008,T.Lackner leg.(cSch); 2 ♁♁, Toyama,Minami-ku,Sapporo-shi, 11.vii.2020,Y.Tasaku leg.( KUM); 1 ♀, Hakken-zan, Toyama, Minami-ku, Sapporo-shi, 4.xi.2020, Y.Tasaku leg.( KUM); 1 ex.,Maruyama Park,Sapporo-shi, 8.vii.2006,T.Lackner leg. (cSch); 2 exs., Hakodate, 9.xi.1967, 21.xi.1967, Savolainen leg. ( FMH); 2 exs., Hakodate 10.ix.–9.x.80, G. Lewis leg. ( BMNH). HONSHU: IWATE- KEN: 1 ♁, Kawara-bo, Hayachine-san, 22–24.vi.1980, S. Naomi leg. ( KUM); 2 ♀♀, The confluence of Noromeki-zawa, headstream of Ô-kawa,Yomogihara,Iwaizumi-chô, 12–13.ix.1998, K.Haga leg.( KUM). FUKUSHIMA- KEN: 1 ♁ 1 ♀, Hiuchi-ga-take, 19.x.1996, Y. Hagiwara et al. leg. ( KUM). IBARAKI- KEN: 1 ex., Toride, Tone Fluss, 2.vi.1994, N. Ito leg. ( SDEI); 3 exs., Vicinity of Tsukuba City, Barber traps, 26.v.2002, P. Jałoszyński leg. (cJał, cSch); 6 exs., Vicinity of Tsukuba-san (50–100 m alt.),Barber traps with fish, 20.iii.–2.iv.2006, P.Jałoszyński leg.(cJał, cSch). TOCHIGI- KEN: 1 ♁ 2 ♀♀, Yumoto,Nikkô-shi, 25.vii.1985, S. Nomura leg. ( KUM); 11 exs., Oku-Nikko, riverbank and park, 29.v.1999, V. Puthz leg. (cSch); 1 ex., Nikko National Park, Chuzenji (1350 m alt.), 14.vii.1980, I. Löbl leg. ( MHNG); 1 ex., Nikko National Park, Ryuzu (1400 m alt.), 16.vii.1980,A.& Z. Smetana leg.(cSch). GUNMA- KEN: 1 ♀, Mihara-tôge, Ozegahara, 24.vii.1995, H. Tamura leg. ( KUM); 2 ♁♁, Ozegahara, Katashina-mura, 2.ix.1995, H. Tamura leg. ( KUM); 1 ♁, Ozegahara Marsh, 23–24.viii.1996, Kyushu Univ. leg. ( KUM); 3 ♁♁ 7 ♀♀, Shibutsu-san, Katashina-mura, 8.ix.1996, Y. Hagino et al. leg. ( KUM); 2 exs., ca. 7 km SE Takasaki, 36°17′40″N, 139°05′24″E, 16.xi.2002, 10.xi.2002, (cOsh); 1 ex., above Marunuma (1350 m alt.), deciduous forest, 30.vii.1999, V. Puthz leg.(cSch). CHIBA- KEN: 1 ♀, Naruyama,Yotsukaidô-shi, 8.xi.1992, T. Takeda leg. ( KUM); 3 ♀♀, same data, but 30.v.1993 ( KUM); 4 ♁♁ 3 ♀♀, Nagarayama,Nagara-machi, 14.xi.1992,T.Takeda leg.( KUM);2 ♁♁, Aoba-chô, Chiba-shi, 31.i.1994, Y. Hagino leg. ( KUM); 1 ♀, Kashiwai, Chiba-shi, 5.iv.1997, S. Nomura leg. ( KUM); 1 ♁, Noda-shi, 12.xi.1989, T.Takeda leg. ( KUM); 1 ♁, Abiko-shi, 26.xi.1989, T.Takeda leg. ( KUM); 3 ♁♁ 1 ♀, Kaneoya-chô, Onari-kôen, Chiba-shi, T. Takeda leg. ( KUM); 1 ♁ 1 ♀, the ruins of livestock experiment station, Chiba-shi, K. Nemoto leg. ( KUM); 14 ♁♁ 7 ♀♀, Yata, Shiroi-shi, 14.xi.1989, T. Takeda leg. ( KUM); 2 ♀♀, Saijô, Kamogawa-shi, 4.i.1990, T. Takeda leg. ( KUM); 4 ♁♁ 1 ♀, Tôjô-kaigan, Kamogawa-shi, 4.i.1990, T. Takeda leg. ( KUM); 3 ♁♁ 1 ♀, Toyotomi, Funabashi-shi, 14.xi.1989, T. Takeda leg. ( KUM); 1 ♁, Funabashi-shi, 29.v.1990, T. Takeda leg. ( KUM). TOKYO- TO: 6 exs., Mt. Tahao [Takao-san] 1.vi.1952, Y. Wada leg. ( NHMW); 1 ex., Tokyo, ( BMNH); 1 ex., Sawai Okutama Tokyo, 8.vi.1936, Y.Yano leg.( BMNH). MIKURA- JIMA: 10 ♁♁ 10 ♀♀, Sato-Kurosaki, 6.vi.1996, S. Naomi & M. Maruyama leg. ( KUM); 5 ♁♁ 2 ♀♀, O-yama, 7.vi.1996, S. Naomi & M. Maruyama leg.( KUM); 8 ♁♁ 10 ♀♀, Sato-Kawada, 8.vi.1996, S. Naomi & M.Maruyama leg.( KUM). KANAGAWA- KEN: 1 ♀, Tsurumi,Yokohama-shi, 16.v.1987, M. Tao leg. ( KUM); 1 ♀, Midori-ku, Yokohama-shi, 5.v.1987, M. Tao leg. ( KUM); 1 ♀, Tanzawa, 21.vi.1987. M. Tao leg. ( KUM); 1 ♁, Shimosha–the top of Ô-yama, Isehara-shi, 21.iv.1985, K. Haga leg. ( KUM); 1 ♀, Uchiyama, Minamiashigara-shi, 30.vi.2009, J. Aoki leg. ( KUM); 1 ex., Kanagawa, Sauter leg. ( FMNH); 3 exs., Nishi-Tanzawa, 9.xi.2002, P. Jałoszyński leg. (cJał, cSch). NAGANO- KEN: 6 ♁♁ 3 ♀♀, Meshimori-yama, Kiyosato, 21.vii.1997, T. Gomi leg. ( KUM); 1 ♁, Shimashimadani, 27.vii.1980. H. Takemoto leg. ( KUM). KYOTO- FU: 2 exs., Myadzu / Myaden, Schneider [= Miyazu?], ( FMNH). HYOGO- KEN: 1 ♀, Mikuma-yama,Awaji-shima,Hyôgo-ken, 3.vi.1978, Kameda leg.( KUM); 1 ex., Kobe,Harada, 1.iv.1913, ( BMNH). OKAYAMA- KEN: 1 ♀, Gagyu-zan, 6.vi.1976, S. Naomi leg. ( KUM); 1 ♁, same data, but 29.v.1977 ( KUM); 1 ♀, Kamisaibara, 10.x.1977, Kameda leg. ( KUM). ATTRIBUTION QUESTIONABLE: 1 ex., Japan, G. Lewis leg. ( FMNH).

Diagnosis. Tachinus (Tachinus) mimulus can be distinguished from other members of the subgenus Tachinus from Japan by the combination of the following characters: body small; lateral and posterior margins of pronotum and those of elytra yellow; male sternite VII with three patches and a row of granules; female tergite with undivided broad inner lobe. For detailed redescription, see LI (1995a: 71).

Biology. Specimens are often collected from leaf litter.

Distribution. Japan (Hokkaido (incl. Rishiri-tô Is.), Honshu (incl. Sado-ga-shima Is., Awaji-shima Is.), Izu-shotô Isls. (Mikura-jima Is.), Shikoku, Kyushu). This species is distributed in lowland and montane zones in mainland Japan.

Remarks. This species belongs to the T. addendus group.

Figures

Fig. 2. Habitus of Tachinus spp.A – T. javanus Cameron, 1937; B – T. kinoshitai Li, 1995; C – T. mimulus Sharp, 1874; D – T. nakanei Ullrich, 1975; E – T. obesus Weise, 1877; F – T. rishirianus Watanabe & Shibata, 1965; G – T. subterraneoides Schülke & Hashizume, 2021; H – T. trifidus Sharp, 1888; I – T. yezoensis Li, 1995. Scale bars = 1.0 mm.