Five new species of the genus Grouvellinus Champion, 1923 from Guizhou Province, China (Coleoptera, Elmidae)
The genus Grouvellinus Champion, 1923 comprises 60 described species distributed across the Oriental and Palearctic regions.Species diversity is very high in mainland China, with 28 recorded species.Here, the results of the aquatic beetle survey in Guizhou Province are presented; they began in 2021, when we collected more than 5000 specimens of rif