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Abstract
Chinese species of Chaetocnema semicoerulea group are revised and three new species described as new: Chaetocnema salixis sp. n., Chaetocnema yulongensis sp. n. and Chaetocnema deqinensis sp. n.. A key to all five species of this group occurring in China and the illustrations of habitus and genitalia are provided. A map of species distribution is given.
Highlights
There are more than 400 species of Chaetocnema known in the world (Konstantinov et al 2011)
43 species are known to occur in China; Chinese Chaetocnema species still remained mostly unknown and need to be collected, properly documented and revised
The Chinese Chaetocnema picipes species-group has been studied previously (Ruan et al 2014), and this paper is a second contribution to the revision of Chaetocnema in China
Summary
There are more than 400 species of Chaetocnema known in the world (Konstantinov et al 2011). Based on the narrow and raised frontal ridge and sparse punctures near each eye, species of the semicoerulea group can be classified in the subgenus Chaetocnema Chaetocnema transbaicalica Heikertinger, 1951: 173 (as subspecies of semicoerulea; type locality: Russia, Ulan-Ude, “Werchne Udinsk”; type depository: NHMB; lectotype designated by Bechyné 1956: 583); Konstantinov et al 2011: 333 (elevated to species).
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