Batrisodes zethus, Jiang, Ri-Xin & Yin, Zi-Wei, 2017

Jiang, Ri-Xin & Yin, Zi-Wei, 2017, Eight new species of Batrisodes Reitter from China (Coleoptera, Staphylinidae, Pselaphinae), ZooKeys 694, pp. 11-30 : 25

Batrisodes zethus sp. n. Fig. 10

Type material

(1 ex.). Holotype: CHINA: ♂, labeled 'China: Hunan, Liuyang City, Daweishan National Forest Park (大围山国家森林公园), 28°25'25"N, 114°07'06"E, 1391 m, 03. vi.2017, Jiang, Liu & Hu leg.' (SNUC)

Diagnosis of male.

Batrisodes zethus can be separated from all other Chinese congeners by the following combination of characters: habitus stout, antennomere IX strongly protruding laterally, X oblique, XI with a setose longitudinal projection at the lateral surface, mesofemur with a distinct ventral projection at basal 1/3, mesotibia with small tubercles at middle and apex, aedeagus elongate, with numerous spine-like structures at middle of the ventral lobe.

Description.

Male. (Fig. 10A), Body reddish brown, BL 2.83 mm. Head wider than long, sub-triangular, roughly punctate and with short setae, HL 0.60 mm, HW 0.66 mm, with large vertexal foveae, antennal tubercles prominent, area between tubercles regularly depressed; clypeus finely punctate, with round anterior margin; lacking lateral longitudinal carinae and median vertexal carina. Each eye composed of about 60 facets. Antennomeres II–VIII moniliform, IX (Fig. 10B) strongly protruding at lateral margins and with long hair at apex, X oblique, XI with a distinct longitudinal projection near middle. Pronotum slightly wider than long, PL 0.58 mm, PW 0.62 mm, covered with fine, short hair, disc slightly convex; with small but, distinct mediobasal impression, lateral longitudinal sulci present; lateral antebasal fovea large and distinct; outer and inner basolateral foveae small. Elytra wider than long, uniformly punctate; EL 0.87 mm, EW 1.04 mm; each elytron with three large basal foveae, discal striae shallow, extending to half elytral length. Mesofemora (Fig. 10C) with thick, long projection at basal 1/3; mesotibiae (Fig. 10D) with small, blunt projection at middle and apex; Abdomen wider than long, AL 0.78 mm, AW 0.97 mm; tergite IV (first visible tergite) longest, nearly 1.5 times as long as next, with oblique marginal carinae; tergite V–VI each with oblique marginal carinae. Aedeagus (Fig. 10 E–G) asymmetrical, median lobe with many spine-like structures at apical half.

Female.

Unknown.

Distribution.

Central China: Hunan.

Biology.

This new species was collected from leaf litter.

Etymology.

Zethus is the son of Zeus and Antiope.