Laccobius (Microlaccobius) orientalis Knisch, 1924

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) orientalis Knisch, 1924 Fig. 27

Material examined.

XIZANG: 41 spec. (SYSU): Linzhi, Bomi County, Hagu township, Taohuagou, 29°59'42"N, 95°37'15"E, 2673 m, 20.vi.2018, Shi-shuai Wang & Zu-long Liang leg.

Diagnosis.

Body length 2.8-3.0 mm. Frons between eyes ca. 2.6 –3.0× as wide as one eye in dorsal view. Pronotum black or dark brown medially, with 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 (a few punctures slightly out of line). Aedeagus ( Fig. 27 ): Basal two-thirds of parameres almost parallel-sided, gradually narrowed towards apex in apical one-third, pointed apically; median lobe almost as wide as parameres basally, gradually narrowed towards apex, rounded apically.

Distribution.

Widely distributed species, recorded from north Africa through Near East and Central Asia to the Himalaya and Tibetan Plateau ( 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.