An introduction to Polynesian Carposina (Lepidoptera: Carposinidae): host jumps and diversification on islands

Hawaiian Carposina represent over 17% of the world fauna of Carposinidae. Diversification appears to have resulted from interplay between host switching and geographic isolation across the Hawaiian Archipelago. In contrast, only two species are known for all of French Polynesia in the South Pacific. Here we describe four new species: two from the Hawaiian Islands, Carposina urbanae n.sp. and C. gagneorum n.sp., and two from the Society Islands, C. longignathosa n.sp. and C. brevinotata n.sp. We further recognize another new Hawaiian species too worn to describe.  Finally, we present a preliminary phylogeny for a subset of species and provide a framework to better understand the diversification and phylogeography of this group.