甘肃敦煌方头甲二新种记述(鞘翅目:方头甲科)

TWO NEW SPECIES OF CYBOCEPHALIDAE FROM GANSU PROVINCE OF CHINA (COLEOPTERA:CYBOCEPHALIDAE)

记述采自中国甘肃省敦煌的方头甲科昆虫二新种 :褶基方头甲Cyboceophalusconduplicatussp .nov .和敦煌方头甲Cybocephalusdunhuangensissp .nov .。模式标本保存在华南农业大学昆虫标本室。

In present paper two species of Cybocephalus Erichson (Coleoptera: Cybocephalidae) collected from Gansu Province of China are described as new to science. The type specimens are deposited in the Insects Collection of South China Agricultural University.Cybocephalus conduplicatus sp.nov. (Figs.1 5) Length 0.90 1.02?mm with head bent, breadth 0.70 0.83?mm Holotype ♂, Dunhuang(40.8°N, 94.41°E), Gansu Province of China, 8 Jul.1981, paratype ♀, same data as holotype. This new species can be separated from other members of Cybocephalus by the fold structure of basal plate. Cybocephalus dunhuangensis sp.nov. (Figs.6 10) Length 1.10 1.11?mm with head bent, breadth 0.90 0.94?mm Holotype ♂, 8 Jul.1981, Dunhuang(40.80°N, 94.41°E), Gansu Province of China. It is alike to C. conduplicatus, but is easily distinguished by the simple basal plate and different structure of penis.