About a thousand species of Drosophila living on the Hawaiian islands that have undergone a remarkable adaptive radiation (q.v.). Over one hundred of these species are much larger than familiar fruit flies and are called picture-winged because of the striking pattern of spots they have on their wings. Over 90% of them are single island endemics, and all are derived from one or two ancestral lines. All have undergone parapatric speciation (q.v.). See Chronology, 1985, Carson; courtship ritual, hot spot archipelago, mate choice, sexual selection.
Subjects: Genetics and Genomics.