Lathrobium tianmushanense Watanabe

Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2012, Taxonomic study on Lathrobium Gravenhorst (Coleoptera, Staphylinidae, Paederinae) from Longwangshan Mountain, East China, ZooKeys 165, pp. 21-32 : 23-24

Lathrobium tianmushanense Watanabe Figs 1C5

Lathrobium tianmushanense Watanabe, 1999: 249

Type locality.

WestTianmushan Mountain, Zhejiang Province, East China

Material studied

(3 ♂♂, 4 ♀♀). 1 ♂, 1 ♀, labelled 'CHINA: zhejiang Prov. / Anji County / Longwang Mt. / Qianmutian / 27.v.2009, alt. 1,300 m, / Yuan, Liu, Feng & Yin leg.'. 1 ♂, 3 ♀♀, same label data, but ‘29.v.2009’.

Rescription.

For detailed male description of male see Watanabe (1999: 249).

Female. BL 8.06-8.34; Measurements and ratios: HL 1.17, HW 1.32, PL 1.55, PW 1.36, EL 1.02, HL/HW 0.89, HW/PW 0.97, HL/PL 0.76, PL/PW 1.14, EL/PL 0.88.

Slightly smaller than male; posterior margin of tergite VIII (Fig. 5G) weakly asymmetrical; sternite VIII (Fig. 5H) distinctly pointed in the middle; tergite IX (Fig. 5I) (not separated from X) with long and acute lateral processes; tergite X (Fig. 5I) slightly shorter than tergite IX.

Distribution.

East China (Zhejiang: Longwangshan and Tianmushan Mountains).

Remarks.

Lathrobium tianmushanense is closest to Lathrobium cooter i from Zhejiang by sharing a similar general form. It can be readily separated by the male sternite VI with modified setae at the concavity and male sternite VIII with relatively regular emargination. While Lathrobium cooteri has the male sternite VI lacking sexual characters and male sternite VIII possess an irregular emargination.