A new genus of Cryptocephalinae from Australia (Coleoptera: Chrysomelidae)

Abstract

Semelvillea gen.n. is described from eastern Australia, with nine species, all of which are new: acaciae, bunyae, eungellae, hirsuta, nothofagi, parva, punctata, tasmaniae and waraganji. The genus is related to Arnomus Sharp in Cryptocephalinae and a partial phylogeny of the species of Semelvillea is proposed using Arnomus as an outgroup. The host-plants include Acacia, Eucalyptus and Nothofagus, and the implications of the species phylogeny for host-plant relationships and biogeography are briefly considered.