Smooth post-labial chaetae in Homidia (Collembola, Entomobryidae) and the description of four new species from China with the aid of DNA barcoding

Abstract

Four new species of Homidia are described from the Guangxi Zhuang Autonomous Region, China. Homidia longiantenna sp. nov. is characterised by its long antenna and slightly expanded post-labial chaetae; H. guangxiensis sp. nov. by the presence of smooth chaetae on the post-labium and posterior face of the ventral tube; H. huapingensis sp. nov. by the presence of smooth post-labial chaetae and pointed tenent hairs; and H. oligoseta sp. nov. by the pointed tenent hairs and fewer macrochaetae on Abdomen IV. Additions to the original description of Homidia acutus Jing & Ma, 2022 are also provided.