Thoracostrongylus aduncatus Yang, Zhou & Schillhammer, 2011

Figs 15-20, 21-28, 29-32, 109 钩茎钝胸隐翅虫

Thoracostrongylus aduncatus Yang, Zhou & Schillhammer, 2011: 413.

Material examined.

China - Yunnan Prov. • 1♂; Xishuangbanna, Menglong Town, Mengsong; 20°30'41"N, 100°30'19"E; alt. 1700 m; 03 April 2018; Peng, Shen & Cheng leg.; SHNU • 1♂; Nabanhe N.R., Chuguohe, Bengganghani; alt. 1750 m; 28 April 2009; Hu & Yin leg.; SHNU • 1♂; Nabanhe N.R., Bengganghani, Nanmugaha; alt. 1650 m; 30 April 2009; Hu & Yin leg.; SHNU • 1♂, 1♀; Nabanhe N.R., Shanshenmiao, Bengganghani; alt. 1700 m; 27 April 2009; Hu & Yin leg.; SHNU • 2♀♀; Nabanhe N.R., Bengganghani; alt. 1750 m; 03 May 2009; Hu & Yin leg.; SHNU • 4♂♂, 1♀; Baoshan City, Mangkuan Town, Baihualing; 25°18'11"N, 98°47'38"E; alt. 1900 m; 21 April 2013; Dai, Peng & Song leg.; SHNU .

Measurements.

Male: BL: 7.0-8.3 mm, FL: 4.2-5.1 mm. HL: 1.17-1.39 mm, HW: 1.61-1.89 mm, CL: 0.83-0.95 mm, PO: 0.17-0.28 mm, PL: 1.50-1.78 mm, PW: 1.22-1.50 mm, EL: 1.78-2.11 mm, EW: 1.78-2.11 mm. HL/HW: 0.70-0.77, CL/PO: 3.00-5.00, PL/PW: 1.12-1.27, EL/EW: 0.97-1.00, HW/EW: 0.84-0.91, PW/EW: 0.66-0.71, HW/PW: 1.24-1.32. Female: BL: 8.0-9.6 mm, FL: 4.8-5.3 mm. HL: 1.33-1.50 mm, HW: 1.83-2.06 mm, CL: 0.95-1.00 mm, PO: 0.22-0.28 mm, PL: 1.72-1.83 mm, PW: 1.39-1.56 mm, EL: 2.00-2.11 mm, EW: 2.11-2.22 mm. HL/HW: 0.73, CL/PO: 3.60-4.25, PL/PW: 1.18-1.24, EL/EW: 0.95, HW/EW: 0.87-0.93, PW/EW: 0.66-0.70, HW/PW: 1.32.

Diagnosis.

The species is similar to T. acerosus Yang, Zhou & Schillhammer, 2011, T. fujianensis Yang, Zhou & Schillhammer, 2011, and T. diaoluoensis Yang, Zhou & Schillhammer, 2011 in general appearance, but it can be distinguished from them by the apex of median lobe pointed dorsad forming an apical tooth in lateral view, and from T. diaoluoensis also by the aedeagal median lobe with a subapical tooth on the dorsal side. Aedeagal variation (Figs 17 - 32) occurs in the apical parts of median lobe and paramere.

Distribution.

China (Yunnan).