Tachinus (s. str.) lohsei Ullrich

Feng, Ting, Schuelke, Michael & Li, Li-Zhen, 2013, A taxonomic revision of the silphaeformis species-group of the genus Tachinus Gravenhorst (Staphylinidae, Tachyporinae) from China, ZooKeys 359, pp. 53-99 : 65-68

Tachinus (s. str.) lohsei Ullrich Figs 4C, 4D, 8C, 8D, 9H, 10H, 11H, 13H, 16B, 18H, 20H, 21H

Tachinus lohsei (s. str.) Ullrich, 1975: 277.

Type locality.

China, Sichuan Province, Wenchuan, Yingxiu.

Type material examined.

Holotype ♂ (Fig. 8C, 8D): CHINA: "Wassuland Bzk. Sankiangkou W Szechuan, China Coll. H. Becker / Ninto Shan 2400 m 4.VII.'34 / Holotypus Tachinus lohsei n. sp. des. W.G. Ullrich 1974, '3014' [red] / Tachinus lohsei n. sp. ♂ W.G. Ullrich det. 1974, ‘3014'” (MHNG).

Other material examined.

6 ♂♂, 5 ♀♀, CHINA: Sichuan Prov., Ganzi A. R., Luding County, Hailuogou, Ganheba, alt. 3,300 m, 26.vi.2009, Li-Zhen LI leg. (SNUC); 1 ♂, 1 ♀, CHINA: Sichuan Prov. Ganzi A. R., Luding County, Hailuogou, Gaohaizi, alt. 2,780 m, 28.vi.2009, Li-Zhen LI leg. (SNUC); 4 ♂♂, 1 ♀, CHINA: Sichuan Prov. Ganzi A. R., Luding County, Hailuogou, Shengtaizhan, alt. 3,000 m, 25.vi.2009, Li-Zhen LI leg. (SNUC); 1 ♀, CHINA: Sichuan Prov., Gongga Shan mts., NNE–slope, 4,000 m, 29°53'N, 102°01'E, 9.-11.vii.1994, D. Král & J. Farkač leg. (NHMB); ♂, ♀, CHINA: Sichuan Prov., Gongga Shan–Hailuogou, 2,900-3,200 m, 29°35'N, 102°00'E, 3-8.vii.1994, D. Král & J. Farkač leg. (cSme, cSch); 1 ♀, CHINA: Sichuan Prov., Gongga Shan, above Camp 2, 2,800 m, 25.vii.1994, A. Smetana leg. (cSme); ♂, CHINA: Sichuan Prov., Gongga Shan, above Camp 2, 2,850 m, 26.vii.1994, A. Smetana leg. (cSme); 1 ♂, 1 ♀, CHINA: Sichuan Prov., Gongga Shan, above Camp 2, 2,800 m, 29°35'N, 102°00'E, 5.vii.1998, A. Smetana leg. (cSme, cSch); 2 ♂♂, 1 ♀, CHINA: Sichuan Prov., Gongga Shan, above Camp 3, 3,200 m, 29°35'N, 102°00'E, 7.vii.1998, A. Smetana leg. (cSme, cSch); 5 ♂♂, 2 ♀♀, CHINA: Sichuan Prov., Gongga Shan, above Camp 3, 3,050 m, 29°35'N, 102°00'E, 6.vii.1998, A. Smetana leg. (cSme, cSch); 1 ♂, 2 ♀♀, CHINA: Sichuan, Gongga Shan, Hailuogou, above Camp 3, 3200 m, 7.VII. 1996 29°35'N, 102°00'E / collected by J. Farkač, P. Kabátek and A. Smetana (NHMB, cSch); 1 ♀, CHINA: Sichuan, Gongga Shan, Hailuogou, above Camp 3, 29°35'N, 102°00'E, 2800-3200 m, 6.-8.VII.1998 J. Farkač / 1998 China Expedition J. Farkač, D. Král, J. Schneider & A. Smetana (NHMB); 1 ♀, CHINA: Sichuan, Gongga Shan, Hailuogou, above Camp 2, 29°35'N, 102°00'E, 2600-2750 m, 3.-6.VII.1998 J. Schneider / 1998 China Expedition J. Farkač, D. Král, J. Schneider & A. Smetana (NHMB); 1 ♂, 1 ♀, CHINA: Sichuan, Gongga Shan, Hailuogou, above Camp 2, 29°35'N, 102°00'E, 2600-2750 m, 3.-6.VII.1998 J. Farkač (NHMB).

Description.

Measurements of males: BL 4.06-4.17; FL 2.84-3.22; PL 0.83-0.84; EL 1.31-1.33; SEL 0.03-0.06; HW 0.72-0.73; PW 1.17-1.28; EW 1.33-1.39; relative length of antennomeres I–XI: 22: 14: 14: 8: 10: 10: 11: 10: 10: 12: 22. Measurements of females: BL 4.17-4.23; FL 2.95-3.11; PL 0.82-0.83; EL 1.50-1.56; SEL 0.11-0.17; HW 0.72-0.78; PW 1.27-1.29; EW 1.39-1.45; relative length of antennomeres I–XI: 21: 14: 15: 12: 13: 13: 14: 12: 12: 11: 25.

Body (Figs 4C, 4D) dark brown to black, head and pronotal disc black, lateral margins of pronotum broadly yellowish brown, elytral disc brown, mouthparts, basal four antennomeres, posterior margin of elytra, abdominal tergites and legs reddish brown.

Head slightly transverse, HW: PW = 0.55-0.62, surface with fine and sparse punctation, microsculpture consisting of discontinuous striae. Antennomeres X slightly shorter than wide in male, but more distinctly shorter than wide in female.

Pronotum: PL: PW = 0.64-0.72, punctation slightly coarser than that of head.

Elytra: EL: PL = 1.56-1.62, EL: EW = 0.94-1.00, EW: PW = 1.04-1.19 in males; EL: PL = 1.79-1.90, EL: EW = 1.03-1.08, EW: PW = 1.08-1.14 in females; apical margin broadly rounded. Surface of elytra with punctation coarser than that of pronotum.

Abdomen with denser and finer punctation than elytra.

Male. Surface of pronotum with weak microsculpture, elytra only with traces of microsculpture. Sternite VII (Figs 9H, 10H) with large basal projection and deep median triangular emargination, coarse granules arranged as inverted “V” in anterior portion of impression, each side of impression with a hand-shaped projection, lateral sides of apical margin with long comb-like setae; apical margin bent dorsad when viewed from behind. Tergite VIII (Fig. 11H) with four lobes, median lobes with small, narrowly rounded emargination between them, and longer than lateral ones. Sternite VIII (Fig. 13H) with four distinct lobes, median lobes longer than lateral ones and separated by a deep, bell-shaped emargination. Aedeagus (Fig. 16B) with median lobe shorter than the parameres, parameres wide and elongate, sides gradually narrowed from apical half to rounded apices; apical third of lateral lobes slightly curved ventrad in lateral view.

Female. Pronotum with microsculpture more distinct, consisting of sinuate transverse striae. Elytra distinctly longer than in male, inner part of posterior margin slightly produced, forming an obtuse angle, microsculpture much more distinct, consisting of short transverse to isodiametric meshes. Tergite VIII (Fig. 18H) distinctly trilobed, median lobe separated from lateral lobes by a deep suture, shorter than lateral ones; lateral lobes broad, each with one pair of long setae. Sternite VIII (Fig. 20H) with six lobes, fimbriate median lobes separated by deep and narrow emargination.

Remarks.

Tachinus lohsei can be separated from the other species of the group by its small size, the broadly yellow lateral margins of the pronotum, and the different primary and secondary sexual characters. The species is very similar to Tachinus jiuzhaigouensis , but the male is distinguished by the different, more rounded apical part of the parameres, the female by the different shape of the median lobe of tergite VIII.