A new species of Demonax Thomson (Coleoptera: Cerambycidae: Cerambycinae) from Southwest China, with a key to thirteen species from China

摘要

A new species, Demonaxproculscuti Li, Tian & Chen, sp. nov. (Coleoptera: Cerambycidae: Cerambycinae), is described from Yunnan Province, Southwest China. A key to 13 species of Demonax from China is presented. The genus Demonax was established by Thomson in 1861. The genus is currently placed in the tribe Clytini (Cerambycinae) and consists of over 250 species worldwide. Demonax can be distinguished by the following characters: head sub-acutely raised on each side between the antennae; antennae not widely separated at the base, third and fourth segments spined at the apex; third segment longer than fourth; prothorax longer than broad or as long as broad, sometimes subglobose and as wide in the middle as the base of the elytra; elytra more or less elongate, truncate at the apex; hind femora exceeding apex of elytra; first hind tarsal segment twice, or nearly twice, as long as the next two combined.