Hesperosoma (Paramichrotus) excellens (Bernhauer, 1939)

Cai 1, Yu-Jie, Tang 1, Liang & Schillhammer 2, Harald, 2021, A review of the genus Hesperosoma Scheerpeltz (Coleoptera, Staphylinidae, Staphylininae) of China, ZooKeys 1075, pp. 137-174 : 137

Hesperosoma (Paramichrotus) excellens (Bernhauer, 1939)

Figures 67-72

Amichrotus excellens Bernhauer 1939: 100

Hesperosoma (Euhesperosoma) excellens Hayashi 2002: 178; Schillhammer 2004: 261; Schillhammer 2009: 86

Hesperosoma (Hemihesperosoma) excellens Schillhammer, 2015: 134

Material examined.

China - Anhui Prov. • 1♂; Huangshan, Tangkou Town, Jiulongpu ; 30°6'41.12"N, 118°12'37.74"E; alt. 760 m; 01 Jul 2020; Tang, Li & Zhou leg. ; sifted; SHNU • 1♀; Huangshan, Tangkou Town, Hougu ; 30°5'3.48"N, 118°8'45.96"E; alt. 569-688 m; 29 Jun -7 Jul 2020; Tang, Li & Zhou leg. ; sifted; SHNU. - Fujian Prov. • 1♂; Wuyishan City, Guadun Vill ; 27°44'N, 117°38'E; alt. 1200-1300 m; 24 May 2012; Peng & Dai leg. ; SHNU • 1♂, 1♀; same collection data as for the preceding; but alt. 1200-1500 m; 25 May 2012 • 2♂♂; same collection data as for the preceding; but alt. 1200-1500 m; 26 May 2012 • 1♂; same collection data as for the preceding; but alt. 1300-1500 m; 27 May 2012 . - Guangdong Prov. • 3♂♂; Ruyuan County, Nanling N. R., Qingshui Valley ; 24°54'57"N, 113°01'55"E; alt. 900 m; 04 May 2015; Peng, Tu & Zhou leg. ; mixed forest, leaf litter, sifted; SHNU • 1♀; Ruyuan County, Nanling N. R., Babaoshan station ; 24°55'43"N, 113°00'58"E; alt. 1030 m; 25 Apr 2015; Z Peng, YY Tu & ZD Zhou leg. ; decaying log; SHNU. - Guangxi Prov. • 1 ♂; Jinxiu County, '16 km’; 24°08'11"N, 110°14'28"E; alt. 960 m; 25 Jul 2014; Peng, Song, Yu & Yan leg. ; forest, leaf litter, sifted; SHNU • 1♂, 1♀; Jinxiu County, '16 km’; 24°08'25"N, 110°15'38"E; alt. 960 m; 13 Jul 2014; Peng, Song, Yu & Yan leg. ; beech forest, leaf litter, humus, sifted; SHNU. - Hunan Prov. • 1♂, 1♀; Yizhang County, Mang Mt. ; 24°55'39"N, 112°59'28"E; alt. 1000-1200 m; 10 May 2020; Li & Wang leg. ; FIT; SHNU. - Zhejiang Prov. • 1♂; Wuyanling ; alt. 700 m; 9 May 2004; Hu, Tang & Zhu leg. ; SHNU • 2♂♂; Longquan, Fengyang Mt., Guan Yin Tai ; 27°55'23"N, 119°11'26"E; alt. 1100 m; 11 May 2019; Tang & Zhao leg. ; sifted; SHNU • 1♂; Longquan, Fengyang Mt., Mihou Valley ; 27°55'2"N, 119°11'37"E; alt. 950 m; 09 May 2019; Tang & Zhao leg. ; sifted; SHNU • 1♂; same collection data as for the preceding; but 11 May 2019 • 1♀; Longquan City, Fengyangshan N. R., Lu'aocun Village ; 27°55'19.66"N, 119°11'38.86"E; alt. 1076 m; 04 May 2016; Jiang, Liu & Zhou leg. ; SHNU.

Measurements.

Male. BL: 10.23-13.98 mm, FL: 5.85-7.10 mm. HL: 1.61-1.89 mm, HW: 2.01-2.57 mm, EYL: 0.68-0.77 mm, TL: 0.68-0.86 mm, PL: 2.17-2.60 mm, PW: 1.76-2.23 mm, EL: 2.51-3.17 mm, EW: 2.57-3.32 mm. HW/HL: 1.25-1.36, TL/EYL: 1.00-1.16, PL/PW: 1.14-1.23, EL/EW: 0.95-0.99.

Female. BL: 11.72-13.36 mm, FL: 6.48-7.22 mm. HL: 1.71-1.92 mm, HW: 2.23-2.41 mm, EYL: 0.71-0.77 mm, TL: 0.77-0.83 mm, PL: 2.32-2.60 mm, PW: 2.01-2.23 mm, EL: 2.85-3.32 mm, EW: 2.91-3.32 mm. HW/HL: 1.25-1.30, TL/EYL: 1.00-1.13, PL/PW: 1.14-1.17, EL/EW: 0.96-1.00.

Distribution.

China (Anhui, Fujian, Guangdong, Guangxi, Hubei and Zhejiang). New to Anhui, Guangdong, Guangxi and Zhejiang.

Diagnosis.

Externally, the species hardly differs from H. meghalayense from India, but may be distinguished by the very different aedeagus (Figs 67-69 ) and, to some extent, geographically. From H. brunkei , it differs in the proximal antennomeres 3 and 4 being bright reddish and segments I-IV of maxillary palpi reddish.

Figures

Figures 67 - 72. Hesperosoma excellens 67 - 68 habitus 69 - 71 aedeagus, lateral (69) and ventral (70) views, paramere (71) 72 female abdominal tergite X. Scale bars: 2 mm (67 - 68), 0.2 mm (69 - 72).