Chaska, a new monotypic genus of Acrotrichinae, Acrotrichini with its single species nawi is described and figured. Superficially similar to the more rounded species of Acrotrichis but distinguished by ventral characters in particular the form of the mesoventral collar and the rounded pronotal hind angles. The insect was collected by Dr Caroline Chaboo and her students at the University of Kansas as part of an inventory of leaf beetles in Peru. The name chosen as the winning entry in a national competition to name a beetle species and raise awareness about cryptic biodiversity.
Chaboo, C.S. (2015) Beetles (Coleoptera) of Peru: A survey of the Families. Part I. Overview. Journal of the Kansas Entomological Society, 88 (02), 135–139.
Chaboo, C.S. & Catenazzi, A. (2015) Beetles (Coleoptera) of Peru: A survey of the Families. Biogeography. Journal of the Kansas Entomological Society, 88 (02), 140–143.
Darby, M. (2013) Studies of Madagascan Ptiliidae (Coleoptera) 1: the tribe Discheramocephalini including eighteen new species. Zootaxa, 3718 (3), 239–266.
Darby, M. & Chaboo, C.S. (2015) Phytotelmatrichis, a new genus of Acrotrichinae (Coleoptera: Ptiliidae) associated with the phytotelmata of Zingiberales plants in Peru. Zootaxa, 4052 (1), 96–106.
Darby, M. (2016a) Studies of Peruvian Ptiliidae (Coleoptera) 3: the genus Discheramocephalus Johnson including six new species, and validation of the unavailable generic name Phytotelmatrichis Darby and Chaboo. Zootaxa, 4097 (3), 416–425.
Darby, M. (2016b) Studies of Peruvian Ptiliidae (Coleoptera) 4: Peruvium a new subgenus of Ptenidium with seven new species. Zootaxa, 4107 (3), 392–402.
Lawrence, J.F. (1999) The Australian Ommatidae (Coleoptera:Archoststemata): new species, larva and discussion of relationships. Invertebrate Taxonomy, 13, 369–390.