Laccobius (Microlaccobius) exilis Gentili, 1974

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) exilis Gentili, 1974 Fig. 26

Material examined.

XINJIANG: 15 spec. (SYSU): Yili, Chabuchar, beside road, 43.77N, 81.15E, 574 m, 4.vii.2017, Rui-juan Zhang & Shi-shuai Wang leg.; 1 male (SYSU): Altai, Habahe County, Baishahu, 48.37N, 85.74E, 553 m, 10.vii.2017, Rui-juan Zhang & Shi-shuai Wang leg.

Diagnosis.

Body length 2.3-2.7 mm. Frons between eyes ca. 2.8 –3.0× as wide as one eye in dorsal view. 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 uniform, arranged almost in a straight line ( Gentili 1995: fig. 162). Aedeagus ( Fig. 26 ) with parameres narrowed towards apex, rounded apically; median lobe wide throughout, slightly wider than parameres, especially in apical part.

Distribution.

Widely distributed species, recorded from Turkey through Central Asia to the Himalaya, Myanmar and the Tibetan Plateau ( Gentili 1995, Hansen 1999, 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.