New species of Hawaiian picture wing Drosophila (Diptera: Drosophilidae), with a key to species

The picture wing species group of Hawaiian Drosophila is the only one to be relatively well known taxonomically, but species continue to be discovered. Here seven new species are described: Drosophila kikiko new species, Drosophila kinoole new species, Drosophila moli new species, Drosophila nukea new species, Drosophila opuhe new species, Drosophila pihulu new species, and Drosophila pilipa new species. In addition, the male of Drosophila oreas Hardy is described for the first time, and Drosophila virgulata Hardy & Kaneshiro is reduced to a new junior synonym of Drosophila lanaiensis Grimshaw, and the status of the latter and Drosophila ciliaticrus Hardy is clarified. A complete key to all the picture wing species is provided.