Laena dentatocrassa, Xiao-Lin, Zhao & Guo-Dong, Ren, 2012

Xiao-Lin, Zhao & Guo-Dong, Ren, 2012, Six new species of the genus Laena Dejean from China (Coleoptera, Tenebrionidae, Lagriinae), ZooKeys 177, pp. 15-36 : 31-32

Laena dentatocrassa sp. n. Figs 649-57

Type material.

Holotype ♂ (MHUB): China, Hainan Island, Jianfengling, 25 May 2011, X. Q. Yang & L. F. Wang leg.

Paratype: 1♂ (SMNS), 1♂ (MHUB): China, Hainan Island, Jianfengling, 25 May 2011, X. Q. Yang & C. Zhang leg; 1♂, 2♀♀ (MHUB): labeled as the holotype.

Etymology.

Named after the massive teeth of the femora.

Diagnosis.

The new species is similar to Laena jizushana Masumoto, 1996, but can be easily distinguished from it by the following characters: (1) body with long and erect setae; (2) posterior femur of male with distinct granulation at inner side; (3) all tibiae of male with granulation at inner side and with finely hooked inner apex; (4) the shape of the aedeagus is different.

Description.

Male. Eyes (Fig. 6) rounded, prominent. Antennae (Fig. 49) extending to base of pronotum, ratio of length (width) of antennomeres II–XI as follows: 5.5 (5.5): 10.8 (6.5): 9.3 (7.5): 8.9 (7.8): 8.3 (9.0): 9.0 (8.5): 8.9 (8.5): 9.0 (8.5): 10.1 (9.8): 19.0 (11.0).

Pronotum (Fig. 6) elongate, 0.9 times as wide as long, widest just behind anterior margin, basal margin distinctly narrower than anterior margin; disc with large punctures, their distance 0.5-2 times as long as puncture diameters, all punctures with long and erect setae, basal part with feeble longitudinal impression, lateral margins indistinctly bordered, basal margin unbordered and not bent downwards, posterior angles rounded; propleura with wider punctures and shorter setae than those of disc.

Elytra (Fig. 6) oblong, 2.4 times as long as wide, widest at middle; elytra punctural rows in indistinct striae, punctures as large as those on pronotum, and each bearing a long and erect seta, intervals with a regular row of small punctures each bearing a similar seta, all intervals convex and shining, interval IX with 10 indistinct setiferous umbilicate pores, interval VII with an indistinct setiferous pore in posterior region.

All femora (Figs. 50-52) each with a strong tooth, posterior femora also with distinct granulation at inner side. All tibiae (Figs. 50-52) with granulation at inner side and with finely hooked inner apex.

Last abdominal ventrite (Fig. 53) nearly rounded at apical margin. Aedeagus see Figs. 55-57.

Females: Ventrite (Fig. 54) nearly sharp at apical margin.

Body length: 5.0-6.0 mm.