Lathrobium maoershanense 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 : 3-8

publication ID

https://doi.org/ 10.5281/zenodo.208404

DOI

https://doi.org/10.5281/zenodo.6170115

persistent identifier

https://treatment.plazi.org/id/FD72CB6F-0A0A-5C07-93C2-FA17D54CFE8A

treatment provided by

Plazi

scientific name

Lathrobium maoershanense Peng and Li
status

sp. nov.

Lathrobium maoershanense Peng and Li View in CoL , new species

( Figs. 1 View FIGURE 1 B, 3)

Type material. (11 3, 27 ƤƤ). HOLOTYPE: 3, labelled ‘ CHINA: GUANGXI Prov. / Xing’an County / Maoershan Mt. / 10.vii.2011, alt. 2,000–2,140 m / Zhong Peng leg.’. PARATYPES: 3 3, 13 ƤƤ, same label data as holotype; 1 3, 4 ƤƤ, same data, but ‘ 9.vii.2011, alt. 2,000–2,140 m / Chen, Ma, Peng & Zhu leg.’; 6 3, 5 ƤƤ, same data, but ‘ 10.vii.2011, alt. 2,100 m / Liang Tang & Wen-Jia He leg.’; 5 ƤƤ, same data, but ‘ 11.vii.2011, alt. 2,100 m / Liang Tang & Wen-Jia He leg.’.

Description. Measurements and ratios: BL 6.60–7.21, HL 0.81–0.84, HW 0.87–0.89, PL 1.17–1.20, PW 0.96–1.00, EL 0.71–0.76, HL/HW 0.92–0.94, HW/PW 0.89–0.91, HL/PL 0.68–0.71, PW/PL 0.82–0.84, EL/PL 0.60–0.64.

Habitus as in Fig. 1 View FIGURE 1 B. Body light brown to brown, legs yellowish brown, antennae reddish brown to yellowish brown.

Head quadrate (HL/HW 0.92–0.94); dorsal surface with coarse and sparse punctation, interstices with very shallow microsculpture; eyes small.

Pronotum nearly parallel-sided; punctation similar to that of head; impunctate midline moderately broad; interstices without microsculpture.

Elytra with punctation denser than that of pronotum and moderately defined; hind wings reduced.

Abdomen with moderately dense punctation; interstices with very shallow, transversely striate microsculpture. Male. Sternite VII ( Fig. 3 View FIGURE 3 D) with apical margin broadly concave, setae unmodified; sternite VIII ( Fig. 3 View FIGURE 3 E) with symmetric emargination and unmodified setae in large impression; sternite IX ( Fig. 3 View FIGURE 3 F) nearly symmetric; aedeagus as in Fig. 3 View FIGURE 3 G– 3I.

Female. Apical margin of tergite VIII ( Fig. 3 View FIGURE 3 A) moderately angulate in middle; sternite VIII ( Fig. 3 View FIGURE 3 B) longer than that of male, apical margin broadly convex, margin with fine and dense micropubescence; tergite IX ( Fig. 3 View FIGURE 3 C) narrowly separated basally; tergite X relatively obtuse basally, reaching basal margin of tergite IX, acute apically.

Remarks. This species resembles L. yinae Watanabe, 1997 from Yunnan, which has the similar habitus ( Watanabe & Xiao, 1997: 495, Fig. 1 View FIGURE 1 ) and a broadly concave apical margin of the male sternite VII ( Watanabe & Xiao, 1997: 496, Fig. 2 View FIGURE 2 ). However, L. maoershanense has relatively sparse setae on male sternite VIII, the ventral process of the aedeagus is broader in ventral view and the dorsal sclerite is longer. The male of Lathrobium yinae has the middle of sternite VIII ( Watanabe & Xiao, 1997: 496, Fig. 2 View FIGURE 2 ) with dense setae in two nearly parallel rows, the ventral process of the aedeagus ( Watanabe & Xiao, 1997: 497, Fig. 8–10) is narrower in ventral view and the dorsal sclerite is very short.

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 its type locality.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Lathrobium

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