Weevils of the Genus Pseudalophus Suvorov, 1915 (Coleoptera, Curculionidae: Entiminae) from the Sino-Tibetan Mountains

Abstract

A brief description of the genus Trichalophus LeConte, 1876 is given based on the characters of two Nearctic species. The genus name Pseudalophus Suvorov, 1915 (type species Ps. tibetanus Suvorov, 1915) is resurrected from synonymy with Trichalophus LeConte, 1876. The lectotype of Ps. tibetanus is designated. Pseudalophus marginatus Faust and Ps. scylla Grebennikov are transferred from the genus Trichalophus to the genus Pseudalophus, where the new combinations Pseudalophus marginatus (Faust, 1887), comb. n. and Pseudalophus scylla (Grebennikov, 2015), comb. n. are formed. Pseudalophus tuberculatussp. n., Ps. rufimanussp. n., Ps. faustisp. n., Ps. ballionisp. n. (Ps. ballioni ballionisubsp. n., Ps. ballioni guttatussubp. n.), Ps. frontalissp. n., Ps. suvorovisp. n., Ps. przewalskiisp. n., Ps. borisisp. n., Ps. reitterisp. n., Ps. bajtenovisp. n., Ps. zherikhinisp. n., Ps. belousovisp. n., Ps. rudigerisp. n., Ps. kozlovisp. n., Ps. kabakisp. n., Ps. boleslavisp. n., Ps. asyaesp. n., and Ps. paratibetanussp. n. are described from the Sino-Tibetan (Hengduan) Mountains in China. A key to 23 species of the genus Pseudalophus from this region is given.