The genus Hercostomus Loew (Diptera, Dolichopodidae, Dolichopodinae) from Inner Mongolia, China, with the description of two new species

Abstract

Previously, only two species of Hercostomus Loew were known to occur in Inner Mongolia. Here two species from Inner Mongolia are described as new to science, namely Hercostomus chifengensis sp. nov. and Hercostomus triangulatus sp. nov. Three new records of Hercostomus in Inner Mongolia are added. A key to the species of Hercostomus in Inner Mongolia is provided.