Lathrobium daicongchaoi
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Ordo: Coleoptera
Familia: Staphylinidae
Genus: Lathrobium
Name
Lathrobium daicongchaoi Peng & Li sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
(3 ♂♂, 6 ♀♀). Holotype: ♂, labeled ‘CHINA: Fujian Prov. / Wuyishan City / Guadun Village / 27°44'N, 117°37'E / 26.v.2012, alt. 1,400 m / Dai & Peng leg.’. Paratypes: 2♀♀, same label data as holotype; 2 ♂♂, 3 ♀♀, same data, except ‘29.v.2012’; 1♀, same data, except ‘28.v.2012’.
Description
Measurements and ratios:BL 7.51–8.90, FL 3.72–4.00, HL 0.89–1.02, HW 1.02–1.15, PL 1.33–1.52, PW 1.13–1.24, EL 0.93–0.96, HL/HW 0.86–0.92, HW/PW 0.90–0.94, HL/PL 0.65–0.67, PL/PW 1.18–1.24, EL/PL 0.63–0.70.
Habitus as in Fig. 1A. Body brown with paler apex, legs light brown, antennae light brown to yellowish brown.
Head subquadrate (HL/HW 0.86–0.92); punctation coarse and sparse; interstices with very shallow microreticulation; eyes small, approximately 1/3–2/5 the length of postocular region in dorsal view.
Pronotum nearly parallel-sided; punctation sparser than that of head; impunctate midline narrow; interstices shining without microsculpture.
Elytra with punctation denser than that of pronotum and well defined; hind wings reduced.
Abdomen with dense punctation; interstices with very shallow, transversely striate microsculpture.
Male. Sternite VI (Fig. 2D) with dense darkish setae in postero-median impression; sternite VII (Fig. 2E) with sparse darkish setae in median impression, and posterior margin with several peg-like setae; sternite VIII (Fig. 2I) with asymmetric emargination and short darkish setae in shallow impression; sternite IX (Fig. 2F) nearly symmetric; aedeagus (Figs 2G, 2H) with short ventral process and thin dorsal sclerite.
Female. Posterior margin of tergite VIII (Fig. 2A) pointed in middle; sternite VIII (Fig. 2B) slightly longer than that of male, middle of posterior margin with broad and obtuse projection; tergite X (Fig. 2C) obtuse apically and not reaching anterior margin of tergite IX (Fig. 2C).
Distribution
East China: Fujian.
Etymology
The species is named after Cong-Chao Dai, collector of the type specimens.
Remarks
The new species resembles Lathrobium zhaotiexiongi Peng & Li, 2012 in havinga postero-median impression on the male sternite VI and similarly shaped male sternite IX. The new species can be readily separated by the presence of a median impression on the male sternite VII and by the short ventral process of the aedeagus. In Lathrobium zhaotiexiongi, the male sternite VII lacks a median impression and has an asymmetric posterior emargination , and the ventral process of the aedeagus is longer.
Original Description
- Peng, Z; Li, L; Zhao, M; 2012: Two new apterous species of Lathrobium Gravenhorst (Coleoptera, Staphylinidae, Paederinae) from Fujian, East China ZooKeys, 218: 57-63. doi
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