Laccobius (Microlaccobius) sublaevis J. Sahlberg, 1900

Jia, Fenglong, Chen, Jia-Hui & Fikacek, Martin, 2019, A new species of Laccobius Erichson, 1837 (Hydrophilidae, Coleoptera) from the Chinese Himalaya, with comments on taxonomic status of subgenera Glyptolaccobius Gentili, 1989 and Cyclolaccobius Gentili, 1991 and additional faunistic records from China, ZooKeys 889, pp. 65-80 : 65

Laccobius (Microlaccobius) sublaevis J. Sahlberg, 1900 Fig. 28

Material examined.

XINJIANG: 1 male (SYSU): Bayinguoleng Mongolian Autonomous Prefecture, Hejing County, Gongnais Forest Farm, 43°14'15"N, 84°39'41"E, 2019 m, 1.vii.2017, Rui-juan Zhang, Shi-shuai Wang, Kai Chen & Yong-jiang Duan leg. 1 male (SYSU): Gongnais valley, 31.vii.2005, Ling Zhao leg.

Diagnosis.

Size 2.8-3.0 mm. Frons between eyes ca. 2.8 –3.0× as wide as one eye. Pronotum black or dark brown medially, without a pair of light spots at anterior margin, with broad yellow band laterally, without shagreen, smooth and shining. Punctures of third and fifth elytral rows in disorder, not arranged in straight lines ( Gentili 1995: fig. 161). Aedeagus ( Fig. 28 ) with median lobe slightly widened apically; parameres with subparallel sides, rounded apically.

Distribution.

Central Asian species reaching to the Tibetan Plateau and the Himalaya Region ( Gentili 1995, Fikáček et al. 2015). New for China.

Figures

Figures 26 - 28. Aedeagi of the species newly recorded from China (all based on Chinese specimens): 26 Laccobius exilis Gentili 27 L. orientalis Knisch 28 L. sublaevis Sahlberg.