Thoracostrongylus acerosus Yang, Zhou & Schillhammer, 2011

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 acerosus Yang, Zhou & Schillhammer, 2011

Figs 1-6 , 7-14 , 108 刺茎钝胸隐翅虫

Thoracostrongylus acerosus Yang, Zhou & Schillhammer, 2011: 410.

Thoracostrongylus baoxingensis Yang, Zhou & Schillhammer, 2011: 415. syn. nov.

Material examined.

China - Sichuan Prov. • 2♂♂, 1♀; Baoxing County, Fengtongzhai; 30°32'10"N, 102°54'20"E; alt. 1490 m; 22 July 2015; Jiang, Peng, Tu & Zhou leg.; SHNU • 1♂, 1♀; Baoxing County, Fengtongzhai N.R., Dengchigou; 30°32'N, 102°56'E; alt. 1870 m; 01 August 2016; Zhou, Jiang, Liu & Gao leg.; SHNU • 1♀; Baoxing County, Fengtongzhai N.R., Dengchigou; 30°29'N, 102°51'E; alt. 1692 m; 02 August 2016; Zhou, Jiang, Liu & Gao leg.; SHNU • 2♀♀; Tianquan County, Liangluxiang Village; 29°56'N, 102°23'E; alt. 1500-1700 m; 10 July 2012; Peng, Dai & Yin leg.; SHNU • 1♀; Tianquan County, Liangluxiang; 29°56'N, 102°23'E; alt. 1900-2000 m; Peng, Dai & Yin leg.; SHNU • 5♀♀; Tianquan County, Lianglu County; alt. 1400 m; 01 August 2011; Hao Huang leg.; SHNU • 2♂♂, 1♀; Dayi County, Xiling Snow Mt.; 30°38'6.25"N, 103°10'99.08"E; alt. 1250 m; 31 July 2021; Zhao & Cai leg.; SHNU. - Shaanxi Prov. • 1♀; Hanzhong, Tiantaishan; 33°16'20"N, 107°04'52"E; alt. 1326 m; 08 May 2021; Juan Li et al. leg.; SHNU • 2♀♀; Liuba, Huoshaodian; 33°30'08"N, 106°56'08"E; alt. 1041 m; 08 July 2021; Juan Li et al. leg.; SHNU • 2♀♀; Zhouzhi Coun., Houzhenzi, Qinling, west Sangongli Gou; 33°50'6.13"N, 107°48'52.4"E; alt. 1336 m; 17-19 May 2008; Huang & Xu leg.; SHNU • 1♀; Zhouzhi Coun., Houzhenzi, Qinling; 33°51'20.3"N, 107°50'18.3"E; alt. 1260 m; 05-10 May 2008; Huang & Xu leg.; SHNU • 1♂; Baoji City, Jiulongdong; 34°19'56"N, 106°52'22"E; alt. 986 m; 26 May 2021; Juan Li et al. leg.; SHNU • 1♀; Baoji City, Jiulongdong; 34°19'59"N, 106°52'21"E; alt. 975 m; 05 August 2021; Juan Li et al. leg.; SHNU • 1♀; Baoji City, Jiulongdong; 34°20'10"N, 106°51'51"E; alt. 969 m; 05 August 2021; Juan Li et al. leg.; SHNU • 1♂; Liuba, Zhangliang Temple; 33°41'51"N, 106°47'15"E; alt. 1476 m; 11 July 2021; Juan Li et al. leg.; SHNU • 1♀; Lueyang, Wulongdong; 33°31'16"N, 106°16'22"E; alt. 1107 m; 20 July 2021; Juan Li et al. leg.; SHNU • 1♀; Lueyang, Wulongdong; 33°30'51"N, 106°15'04"E; alt. 1237 m; 20 July 2021; Juan Li et al. leg.; SHNU • 2♂♂; Ankang City, Ningshan, Guanghuojie Town; 33°45'81"N, 108°46'48"E; alt. 1176 m; 07-08 May 2011; Bao-Xiang Zhan leg.; SHNU. - Gansu Prov. • 1♂; Hui County, Gaoqiaolinchang; 34°05'44"N, 105°57'42"E; alt. 1305 m; 18 May 2021; Juan Li et al. leg.; SHNU • 1♀; Hui County, Yanpinglinchang; 33°40'36"N, 106°16'51"E; alt. 1483 m; 18 July 2021; Juan Li et al. leg.; SHNU. - Henan Prov. • 1♂; Funiu Shan, Baotianman; alt. 1500-1700 m; 33°31'N, 111°56'E; 15 June 2009; J. Turna leg.; NMW.

Measurements.

Male: BL: 8.2-9.7 mm, FL: 4.5-5.2 mm. HL: 1.28-1.45 mm, HW: 1.78-1.95 mm, CL: 0.89-0.95 mm, PO: 0.22-0.28 mm, PL: 1.61-1.78 mm, PW: 1.45-1.50 mm, EL: 1.95-2.11 mm, EW: 1.95-2.11 mm. HL/HW: 0.70-0.78, CL/PO: 3.20-4.00, PL/PW: 1.12-1.23, EL/EW: 0.95-1.00, HW/EW: 0.87-0.94, PW/EW: 0.68-0.74, HW/PW: 1.23-1.31. Female: BL: 9.2-10.4 mm, FL: 4.8-5.3 mm. HL: 1.39-1.50 mm, HW: 2.00-2.17 mm, CL: 0.89-1.06 mm, PO: 0.22-0.28 mm, PL: 1.72-1.95 mm, PW: 1.50-1.72 mm, EL: 2.00-2.50 mm, EW: 2.11-2.50 mm. HL/HW: 0.68-0.72, CL/PO: 3.60-4.00, PL/PW: 1.00-1.19, EL/EW: 0.95-1.00, HW/EW: 0.84-0.95, PW/EW: 0.69-0.71, HW/PW: 1.23-1.33.

Distribution.

China (Hubei, Sichuan, Shaanxi, Gansu, Henan). New to Shaanxi, Gansu, and Henan.

Diagnosis.

In general appearance, T. acerosus is similar to T. aduncatus Yang, Zhou & Schillhammer, 2011, T. fujianensis Yang, Zhou & Schillhammer, 2011, and T. diaoluoensis Yang, Zhou & Schillhammer, 2011, but it can be recognized by the sharply pointed tip of aedeagal median lobe.

Remarks.

The apical portion of the median lobe and the paramere are subject to some variability (Figs 3 - 14 ). This may be observed not only in populations from different localities but also within one population. A closer inspection of the types of T. baoxingensis and T. acerosus revealed that this is the case here as well and that both species are conspecific.

Figures

Figures 1 - 6. Thoracostrongylus acerosus 1, 2 habitus 3 - 6 aedeagus, ventral (3, 4) and lateral (5, 6) views. Scale bars: 1 mm (1, 2); 0.2 mm (3 - 6).

Figures 7 - 14. Thoracostrongylus acerosus 7 - 10 aedeagus from Xiling Snow Mountain, ventral (7, 8) and lateral (9, 10) views 11 - 14 aedeagus from Jiulongdong, ventral (11, 12) and lateral (13, 14) views. Scale bars: 0.2 mm.

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.