Acilius (beetle)
Acilius is a holarctic genus of diving beetles in the family Dytiscidae and typically has a life cycle that is univoltine.
Despite the prevalence of some species, one species, A. duvergeri, is listed as vulnerable on the IUCN Red List.
Species
The genus Acilius contains the following 13 extant species in 2 subgenera:Subgenus Acilius:Acilius abbreviatus Aubé, 1838Acilius athabascae Larson, 1975Acilius canaliculatus Acilius confusus Bergsten, 2006Acilius fraternus Acilius japonicus Brinck, 1939Acilius kishii Nakane, 1963Acilius mediatus Acilius semisulcatus Aubé, 1838Acilius sinensis Peschet, 1915Acilius sulcatus Acilius sylvanus Hilsenhoff, 1975
Subgenus HomoelytrusAcilius duvergeri Gobert, 1874