Thoracostrongylus velutinus Scheerpeltz, 1965

Xia, Mei-Hua, Tang, Liang & Schillhammer, Harald, 2022, Review of Chinese species of the genus Thoracostrongylus Bernhauer, 1915 (Coleoptera, Staphylinidae, Staphylininae), ZooKeys 1131, pp. 99-134 : 99

Thoracostrongylus velutinus Scheerpeltz, 1965

Figs 74-79 , 118 绒钝胸隐翅虫

Thoracostrongylus velutinus Scheerpeltz, 1965: 243; Yanget al. 2011: 430.

Material examined.

China - Yunnan Prov. • 1♂, 1♀; Gongshan County, Qiqi ; alt. 2000 m; 29 June 2010; Wen-Xuan Bi leg.; SHNU • 3♀♀; Gongshan County, Qiqi ; alt. 1900 m; 02 July 2010; Liang Tang leg.; SHNU • 1♂; Tengchong Coun., Baihualing ; 24 May 2005; Hao Huang leg.; SHNU • 1♂; Tengchong County, Mingguang Town, Zizhi Vill ; 25°42'N, 98°35'E; alt. 2300-2500 m; 30 April 2013; Song, Dai & Peng leg.; SHNU .

Measurements.

Male: BL: 7.3-8.9 mm, FL: 4.7-5.1 mm. HL: 1.22-1.33 mm, HW: 1.61-1.72 mm, CL: 0.83 mm, PO: 0.22-0.28 mm, PL: 1.67-1.78 mm, PW: 1.39-1.50 mm, EL: 2.11 mm, EW: 2.11-2.22 mm. HL/HW: 0.73-0.77, CL/PO: 3.00-3.75, PL/PW: 1.19-1.23, EL/EW: 0.95-1.00, HW/EW: 0.78-0.79, PW/EW: 0.66-0.68, HW/PW: 1.15-1.20. Female: BL: 8.4-10.3 mm, FL: 4.7-5.3 mm. HL: 1.28-1.45 mm, HW: 1.72-1.95 mm, CL: 0.89-0.95 mm, PO: 0.22-0.28 mm, PL: 1.67-1.89 mm, PW: 1.39-1.61 mm, EL: 2.00-2.34 mm, EW: 2.00-2.45 mm. HL/HW: 0.73-0.76, CL/PO: 3.20-4.00, PL/PW: 1.17-1.23, EL/EW: 0.95-1.00, HW/EW: 0.76-0.92, PW/EW: 0.63-0.69, HW/PW: 1.17-1.35.

Diagnosis.

The species can be easily distinguished from other species from southwest China by the abdominal tergites III-VI without a triangular, mediobasal, golden tomentose patch. In general appearance, T. velutinus is most similar to T. formosanus , but may be distinguished from the nominate ssp. of the latter by its smaller body size and paler mid and hind legs, and from T. formosanus flavipes by the dark antennae.

Distribution.

China (Yunnan), Myanmar.

Figures

Figures 74 - 79. Thoracostrongylus velutinus 74, 75 habitus 76 - 79 aedeagus, ventral (76, 77) and lateral (78, 79) views. Scale bars: 1 mm (74, 75); 0.2 mm (76 - 79).

Figures 108 - 122. Distribution map of Thoracostrongylus species of China 108 T. acerosus 109 T. aduncatus 110 T. birmanus 111 T. diaoluoensis 112 T. formosanus formosanus 113 T. formosanus flavipes 114 T. fujianensis 115 T. malaisei 116 T. miyakei 117 T. sarawakensis 118 T. velutinus 119 T. baishanzuensis 120 T. bicolor 121 T. brachypterus 122 T. chrysites. Triangle, localities of specimens examined in this paper; square, localities of specimens listed in previous papers. Red, doubtful localities; blue, trustede localities.