Laena yuanbaoica, Schawaller & Bellersheim, 2023

Schawaller, Wolfgang & Bellersheim, Aron, 2023, New species and records of Laena Dejean (Coleoptera: Tenebrionidae: Lagriinae) from Vietnam, southeastern China, and Korea, Zootaxa 5296 (4), pp. 540-550 : 548-549

Laena yuanbaoica sp. n.

( Fig. 10 )

Type material. Holotype: ♀, China, NW Guangxi, Yuanbao Shan , 1200–1500 m, 6.VI.2009, leg. C. Reuter, SMNS.

Description. Body length 7.5 mm, dorsal surface dark brown without metallic reflection. Eyes weakly prominent. Pronotum cordiform, widest across anterior third, posterior margin distinctly narrower than the anterior one; with widely separated small punctures, distance 2–5 puncture diameters, most punctures with long erect setae; surface convex and shining, disc without impressions; lateral margins beaded; posterior corners rounded; prothoracic hypomera with similar punctures as on pronotum, but without visible setation. Elytra elongate with rows of punctures without striae, punctures of rows of similar size as punctures on pronotum, punctures with long erect setae; intervals with a few fine punctures and with a few setae, interval 9 with 4 indistinct setiferous pores, internal intervals feebly convex, external intervals distinctly convex; surface shining. Apex of elytra not prolonged. All femora each with a pair of similar distinct teeth. Tibiae simple, without peculiarities (only female available). Aedeagus unknown, only female available.

Diagnosis. Can be recognised by large body size, by the cordiform pronotum with beaded lateral margins and widely separated punctures, and by the femora each with a pair of similar distinct teeth. This combination of external characteristics is unique among all species from southeastern China.

Etymology. Named after Yuanbao Shan, where the holotype was collected.

Figures

FIGURES 8–10. Dorsal view of Laena species from Vietnam and southeastern China. 8. L. tramtonica sp. n., ♁ holotype, Vietnam, NHMW. 9. L. fanjingshanana Ren & Hua, 2006, ♁ non-type, Guangxi, SMNS. 10. L. yuanbaoica sp. n., ♀ holotype, Guangxi, SMNS. Scale line: 4.0 mm.