Lathrobium acutissimum
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Peng2012ZooKeys205, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Peng2012ZooKeys205">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Staphylinidae
Genus: Lathrobium
Name
Lathrobium acutissimum Peng, Li & Zhao sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type locality
Labahe Natural Reserve, Sichuan Province, Southwest China
Type material (5 ♂♂, 4 ♀♀)
Holotype: ♂, labeled ‘CHINA: Sichuan Prov. / Tianquan County / Labahe N. R. / 30°09'N, 102°26'E / 30.vii.2006, alt. 2,000 m / Hu & Tang leg.’. Paratypes: 4 ♂♂, 2 ♀♀, same label data as holotype; 2 ♀♀, same label data, except ‘29.v.2006’.
Description
Measurements and ratios:BL 8.12–10.00, FL 3.78–4.11, HL 1.18–1.26, HW 1.26–1.31, PL 1.52–1.63, PW 1.30–1.41, EL 0.98–1.05, HL/HW 0.93–0.96, HW/PW 0.94–0.97, HL/PL 0.76–0.79, PL/PW 1.16–1.17, EL/PL 0.64–0.67.
Habitus as in Fig. 1A. Body brown with paler apex, legs brown to light brown, antennae brown to reddish brown.
Head subquadrate (HL/HW 0.93–0.96); punctation coarse and dense; interstices with shallow and netlike microsculpture; eyes small, approximately 1/5–1/4 of 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 VII (Fig. 2A) with short, darkish setae in U-shaped posterio-median impression; sternite VIII (Fig. 2B) with triangular, symmetrical emargination and short, darkish setae in shallow impression; sternite IX (Fig. 2C) long and nearly symmetrical; aedeagus (Fig. 2D, 2E) with very slender, ventral process.
Female. Posterior margin of tergite VIII (Fig. 2F) somewhat convex; sternite VIII (Fig. 2G) slightly longer than that of male, posterior margin broadly convex; tergite X (Fig. 2H) not acute basally and not reaching anterior margin of tergite IX (Fig. 2H).
Distribution
Southwest China: Sichuan.
Etymology
The specific epithet (Latin, adjective: sharp) alludes to the apical margin of the male sternite IX.
Remarks
It resembles Lathrobium lijiangense Watanabe & Xiao, 1997 from Yunnan in having a similar shape of the male sternite VII. The new species can be readily distinguished from these species by the male sternite VIII with a triangular emargination at the apical margin and by the aedeagus with a much longer ventral process. In Lathrobium lijiangense, the male sternite VIII has a semi-elliptical emargination at the apical margin and the ventral process of the aedeagus is short.
Original Description
- Peng, Z; Li, L; Zhao, M; 2012: Three new species of Lathrobium Gravenhorst (Coleoptera, Staphylinidae, Paederinae) from Sichuan, Southwest China ZooKeys, 205: 33-44. doi
Images
|
