Review of Chinese species of the genus Thoracostrongylus Bernhauer, 1915 (Coleoptera, Staphylinidae, Staphylininae) Author Xia, Mei-Hua College of Life Sciences, Shanghai Normal University, 100 Guilin Road, 1 Author Tang, Liang College of Life Sciences, Shanghai Normal University, 100 Guilin Road, 1 staphylinidae@shnu.edu.cn Author Schillhammer, Harald st text ZooKeys 2022 2022-11-22 1131 99 134 http://dx.doi.org/10.3897/zookeys.1131.95038 journal article http://dx.doi.org/10.3897/zookeys.1131.95038 1313-2970-1131-99 EE89E8CF4B764FBC821A79BC51D28D67 1ACF6E07EE8A54DB9906143C0532304D Thoracostrongylus brachypterus sp. nov. Figs 96-101 , 121 短翅钝胸隐翅虫 Type material. Holotype. China - Sichuan Prov. •♂, glued on a card with labels as follows: "China: Sichuan, Muli Tibetan Autonomous County, Mianbu Yakou; 27°68'N, 101°22'E ; alt. 3100 m; 04 June 2012; Hao Huang. leg." "Holotype / Thoracostrongylus brachypterus / Xia, Tang & Schillhammer" [red handwritten label]; SHNU. Paratypes. China - Sichuan Prov. • 1♀; S Sichuan, pass 20km S MULI (BOWA); 27.45°N , 101.13°E ; 28-29 June 1998; mixed forest cca. 3500m; Jaroslav Turna leg.; NMW • 21♂♂, 9♀♀; S-Sichuan, pass betw. Yanyuan/Muli; alt. 3244 m; 27.68638°N , 101.22335°E ; 11-18 June 2017; C. Reuter leg.; 20 BFC, 10 NMW • 1♂; S-Sichuan, pass ~ 50km NE Yanyuan to Xichang; alt. 2950 m, 27°33'11"N , 101°45'04"E ; 07-18 June 2017; C. Reuter leg.; BFC. Figures 96-101. Thoracostrongylus brachypterus sp. nov. 96, 97 habitus 98-101 aedeagus, ventral ( 98, 99 ) and lateral ( 100, 101 ) views. Scale bars: 1 mm ( 96, 97 ); 0.2 mm ( 98-101 ). Measurements. Male : BL: 7.6-9.3 mm, FL: 4.1-4.6 mm. HL: 1.20-1.30 mm, HW: 1.50-1.70 mm, CL: 0.80-0.89 mm, PO: 0.22-0.25 mm, PL: 1.55-1.78 mm, PW: 1.23-1.45 mm, EL: 1.60-1.72 mm, EW: 1.70-1.89 mm. HL/HW: 0.77-0.80, CL/PO: 3.23-4.00, PL/PW: 1.23-1.26, EL/EW: 0.91-0.94, HW/EW: 0.88-0.90. Female : BL: 11.0 mm, FL: 4.8-5.0 mm. HL: 1.35-1.40 mm, HW: 1.80-1.85 mm, CL: 0.80-0.90 mm, PO: 0.30-0.35 mm, PL: 1.75-1.80 mm, PW: 1.55 mm, EL: 1.85 mm, EW: 1.95 mm. HL/HW: 0.73-0.78, CL/PO: 2.33-3.03, PL/PW: 1.13-1.16, EL/EW: 0.95, HW/EW: 0.92-0.95. Diagnosis. The new species is the only brachypterous species of the genus so far that is known from mainland China, except for a potential record of a brachypterous T. malaisei , from which it can be separated as indicated above. The T. malaisei specimens from the type locality have rather short elytra and developed hindwings, which may be functional or not since the palisade fringe on tergite VII is very narrow. Thoracostrongylus miyakei from Taiwan also has weakly developed, non-functional hind wings and no palisade fringe on tergite VII, which differs from the new species by pronotum without impunctate midline. Description. The new species is almost identical to T. malaisei , from which it differs, in addition to the different aedeagus, by the differently colored labrum, which is reddish with each lobe with a large, dark brown, central spot (in T. malaisei with a black medial margin along medial excision). Most specimens of T. malaisei have at least a very narrow palisade fringe on tergite VII, which is lacking only in the single specimen from Yunnan. Male. Sternite VIII with medioapical emargination. Aedeagus (Figs 98-101 ) slender and long, median lobe swollen in middle third and then narrowed apicad in ventral view; in lateral view, median lobe with subapical tooth on dorsal side in apical sixth; paramere rather wide, subparallel-sided, apical margin with slight medial notch, with approximately seven setae. Female. Sternite VIII with posterior margin entire. Distribution. China (Sichuan). Etymology. This specific name (derived from Greek) means "short winged".