Abstract
Three new Stenus species of the cirrus group collected from Guizhou Province, southwest China, are described: S. dashaheensis sp. n., S. zhangyuqingi sp. n., and S. liuyixiaoi sp. n. The diagnostic characters of the new species are illustrated, and a key to species of the group from Guizhou Province is provided.
Highlights
The Stenus cirrus group is a large group with 75 known species worldwide, 58 of which have been reported from China (Tang et al 2008; Puthz 2009; Tang et al 2016; Liu et al 2017)
The type specimens treated in this study are deposited in the following public and private collections: SHNU Department of Biology, Shanghai Normal University, P
The new species can be distinguished from other related species by the following characters: body size smaller (BL < 4.2 mm), elytra distinctly shorter than wide (EL/EW= 0.84–0.90), the rather smooth surfaces of pronotum and elytra, and the larger and less confluent punctation of pronotum and elytra than abdomen
Summary
The Stenus cirrus group is a large group with 75 known species worldwide, 58 of which have been reported from China (Tang et al 2008; Puthz 2009; Tang et al 2016; Liu et al 2017). The new species can be distinguished from other related species by the following characters: body size smaller (BL < 4.2 mm), elytra distinctly shorter than wide (EL/EW= 0.84–0.90), the rather smooth surfaces of pronotum and elytra, and the larger and less confluent punctation of pronotum and elytra than abdomen.
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