PHYLOGENY AND EVOLUTIONARY ZOOGEOGRAPHY OF THE HAWAIIAN PIPUNCULIDAE (DIPTERA)

Within the scope of a world revision of the genus group Cephalops Fall en, the pipunculid fauna of the Hawaiian islands was revised. All 36 s pecies proved to belong to a distinct monophyletic species group withi n the genus Cephalops, called the hawaiiensis subgroup. This subgroup seems to be endemic to the islands and probably originated from one fo under ancestor. A cladistic analysis, based on characters of the male terminalia, resulted in a largely resolved cladogram where a number of distinct transformation series could be detected. A zoogeographical a nalysis, based on assumption 0 (Brooks parsimony analysis), 1 and 2 (C omponent analysis) agrees with the geological information, and the anc estry and colonization of the group throughout the history is discusse d.