The fourth instar larva and pupa of Dasyheleaalula Yu, 2005 are described and illustrated using a Scanning Electron Microscope. The adult male and female of this species are redescribed. Immatures were collected from flooded soil near a pond in Xiaojiawan village, Guizhou province, China and reared in the laboratory. The studied material is deposited in the Insect Collection of Zunyi Medical University.
A checklist of the subgenus Culicoides (Avaritia Fox) (Diptera: Ceratopogonidae: Culicoides) in China, currently including 57 species, is provided. Their full citations, more detailed locations of the type locality, and distribution of each species by province, and/or state of each species are also provided. Culicoides (Avaritia) fenggangensis Liu & Hou, sp. n. is described and illustrated, based on both male and female specimens from China. The new species is compared with its similar congeners, C. (A.) comparis Liu & Yu, 2005 and C. (A.) dentiformis McDonald & Lu, 1972.
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