A review of the Tachinus longicornis - group of the subgenus Tachinoderus Motschulsky (Coleoptera: Staphylinidae: Tachyporinae) from China Chang, Yuan Li, Li-Zhen Yin, Zi-Wei Schülke, Michael Zootaxa 2019 2019-11-21 4545 4 478 494 8VSDV Chang, Li & Yin Chang & Li & Yin & Schülke 2019 [151,765,367,392] Insecta Staphylinidae Tachinus GBIF Animalia Coleoptera 8 486 Arthropoda subGenus sp. nov. Tachinoderus  ( Figs 6–7, 12)   Type material( 10 exs).  Holotype: CHINA:Ƌ: ‘ China: YunnanProv., Xishuangbanna(西双版纳), Menglun Town(勐仑镇), Ba-ka-xiao-zhai (巴卡小寨), 21°58’00’’N, 101°12’01’’E, alt.  800 m,  31.iii.2018, sifting, Peng,  Shen & Chengleg.’ ( SNUC);  Paratypes: CHINA: 1 ♀: ‘ China: Nanban Village, Nabanheconv., Yunnan Prov.,  7.i.2004, Li & Tang leg.’; 1 ♂: same label data, except ‘alt. 700 m, 26.vii.2005, Li & Li leg.’; 1 ♀: same label data, except ‘N22.10.032, E100.39.359, alt. 720 m, 22.xi.2008, Hu Jia-Yao & Yin Zi-Wei leg.’; 1 ♂: same label data, except ‘ 06.v.2009,  Hu Jia-Yao& Tang Liangleg.’; 1 ♂, 1 ♀: ‘ China: Yunnan Prov., Nanbanhe N. R.(纳版河自然 保护区), Manfei(曼费), N22.09.593, E100.41.327, alt.  660 m,  18.xi.2008,  Hu Jia-Yao& Tang Liangleg.’; 1 ♂, 1 ♀: also from Manfei, except ‘alt.  700 m,  05.v.2009,  Jia-Yao Hu& Zi-Wei Yinleg.’; 1 ♀: also from Manfei, except ‘  9.i.2004, Li & Tangleg.’(all in SNUC).   FIGURE 7.Diagnostic features of  Tachinus lobutulus(A–E. Male. F–G. Female). A, F.Tergite VIII. B.Sternite VII. C, G.Sternite VIII. D–E.Aedeagus, in ventral (D) and lateral (E) view. Scale bar: 0.2 mm.  Diagnostic description.Male. Habitus as in Fig. 6A; TBL 3.39–4.0 mm, FBL 2.21–2.64 mm; head black, pronotal disc, elytra, abdomen and posterior tibiae darkish-brown, antennomeres I, XI, mouthparts, pronotal posterolateral areas, and most parts of legs yellowish-brown. Head sub-triangular, HL 0.42–0.61 mm, HW 0.52– 0.75 mm, with microsculpture at posterior portion; eyes prominent, EyL 0.19–0.24 mm; antenna elongate, AnL 2.17–2.26 mm, relative lengths of antennomeres I–XI: 1.25: 1: 1.5: 1.5: 1.5: 1.5: 1.5: 1.5: 1.25: 1.25: 1.75. Pronotum strongly transverse, PL 0.7 5– 0.84 mm, PW 1.32–1.41 mm, PI = 0.57–0.60. Elytra slightly broader than long, EL 1.08–1.22 mm, EW 1.18–1.27 mm, EI = 0.92–0.96. Abdominal surface with microsculpture consisting of transverse waves; tergite VIII ( Fig. 7A) with four short lobes, inner lobes longer than outer ones; sternite VII ( Fig. 7B) triangularly emarginate at middle along posterior margin, granules densely arranged along midline at posterior half; sternite VIII ( Fig. 7C) with two lobes, deeply incised in between, median length of sternite 0.82 times as long as depth. Length of aedeagus ( Fig. 7D–E) 0.75 mm, parameres short and broad, below level of apex of median lobe, slightly curved ventrally in lateral view; apex of median lobe triangular in ventral view. Female. General habitus ( Fig. 6B) similar to male. Measurements: TBL 3.44–4.14 mm, FBL 2.36–2.64 mm, HL 0.42–0.57 mm, HW 0.75–0.80 mm, EyL 0.19–0.24 mm, AnL 2.17–2.21 mm, PL 0.71–0.80 mm, PW 1.32–1.41 mm, PI 0.53–0.57, EL 1.13–1.18 mm, EW 1.32–1.41 mm, EI 0.83–0.86. Tergite VIII ( Fig. 7F) with four lobes, outer lobes much longer than inner ones, shallowly incised between inner lobes; sternite VIII ( Fig. 7G) with six lobes, fimbriate lobes longer than others.  Comparative notes.  Tachinus lobutulusis similar to  T. bilobusand  T. longicornisin sharing short and broad parameres of the aedeagus. From  T. bilobus, the new species can be separated by the relatively much less elongate male tergite VIII, and inner lobes of female tergite VIII being much shorter than outer ones. From  T. longicornis, the new species differs in the male sternite VIII with only two lobes, and apices of the parameres not exceeding the median lobe of the aedeagus.   Distribution. China: Yunnan( Fig. 12).   Etymology.The new specific epithet refers to the short inner lobes of female tergite VIII. 2147525182 2018-03-31 China China 800 21.966667 Menglun Town 21 101.20027 Xishuangbanna 8 486 1 Yunnan holotype 2147525179 2004-01-07 SNUC Cheng China China Nabanhe Nanban Village 9 487 1 1 Yunnan paratype 2147525279 2008-11-18 Hu & Jia-Yao & Tang Liang & Nanbanhe N. R. China China 660 Manfei Prov. 9 487 2 1 1 Yunnan paratype 2147525177 2009-05-05 Hu & Jia-Yao & Tang Liang China 700 Manfei 9 487 2 1 1 paratype 2147525421 2004-01-09 Jia-Yao & Hu & Zi-Wei Yin China Manfei 9 487 1 1 paratype