Lathrobium zhujianqingi Peng and Li

Peng, Zhong, Li, Li-Zhen & Zhao, Mei-Jun, 2012, New species of the genus Lathrobium Gravenhorst (Coleoptera: Staphylinidae: Paederinae) from Guangxi, South China, Zootaxa 3389, pp. 1-16 : 9-12

Lathrobium zhujianqingi Peng and Li , new species

( Figs. 1 F, 7)

Type material. (3 3, 7 ƤƤ). HOLOTYPE: 3, labelled ‘ CHINA: GUANGXI Prov. / Xing’an County / Maoershan Mt. / 10.vii.2011, alt. 2,000–2,140 m / Chen, Ma, Peng & Zhu leg.’. PARATYPES: 1 3, 6 ƤƤ, same label data as holotype; 1 3, 1Ƥ, same data, but ‘alt. 2,100 m /Liang Tang leg.’.

Description. Measurements and ratios: BL 9.56–10.29, HL 1.20–1.24, HW 1.30–1.35, PL 1.67–1.70, PW 1.44–1.50, EL 1.15–1.20, HL/HW 0.89–0.92, HW/PW 0.90–0.92, HL/PL 0.71–0.73, PW/PL 0.86–0.88, EL/PL 0.68–0.71.

Habitus as in Fig. 1 F. Externally similar to L. dayaoshanense , except for the slightly darker average coloration, the slightly denser punctation on the head and the pronotum and the narrower impunctate midline on the pronotum. Male. Sternite VII ( Fig. 7 D) with apical margin broadly concave, setae unmodified; sternite VIII ( Fig. 7 E) without emargination and with narrow impression along middle, on either side of this impression with sparse and short setae; sternite IX (Fig. 8F) asymmetric; aedeagus as in Fig. 7 G– 7I.

Female. Apical margin of tergite VIII ( Fig. 7 A) sharply angulate at middle; sternite VIII ( Fig. 7 B) slightly oblong, longer than that of male and apical margin obtusely convex; tergite IX ( Fig. 7 C) narrowly separated basally; tergite X obtuse basally, reaching basal margin of tergite IX, acute apically.

Remarks. The new species resembles L. zhangi Watanabe, 1997 from Yunnan in the shape of male sternite VII ( Watanabe & Xiao, 1997: 496, Fig. 5 ). But L. zhangdinghengi is typically larger and the ventral process of the aedeagus in ventral view with larger lobe truncate apically. In L. zhangi , the ventral process of the aedeagus ( Watanabe & Xiao, 1997: 502, Fig. 17–19) is elongate.

Distribution. South China (Guangxi: Maoershan Mountain).

Habitat. The adults were collected from the leaf litter of the mountain track by sifting.

Etymology. The species is named after Jian-Qing Zhu, who collected the type specimens.

Figures

FIGURE 1. Habitus of Lathrobium spp., A — L. dayaoshanense; B — L. maoershanense; C — L. proprium; D — L. shengtangshanense; E — L. zhangdinghengi; F — L. zhujianqingi. Scale bars: 1.0 mm.

FIGURE 5. Lathrobium shengtangshanense. A — female tergite VIII; B — female sternite VIII; C — female tergites IX – X. D — male sternite VII; E — male sternite VIII; F — male sternite IX; G, H — aedeagus in ventral view; I — aedeagus in lateral view; J — the front part of the aedeagus, enlarged. Scale bars: A — I: 0.5 mm, J: 0.2 mm.

FIGURE 7. Lathrobium zhujianqingi. A — female tergite VIII; B — female sternite VIII; C — female tergites IX – X. D — male sternite VII; E — male sternite VIII; F — male sternite IX; G, H — aedeagus in ventral view; I — aedeagus in lateral view. Scale bars: 0.5 mm.