Studies of Gymnomyzinae (Diptera: Ephydridae), V: A Revision of the Shore-Fly Genus Mosillus Latreille

Abstract

Species of Mosillus, which now number six, are revised. The following new species is described (type locality in parentheses): Mosillus asiaticus (China. Gansu: Ruo shui, S. Alashan', Gobi). The monophyly of Mosillus within the tribe Gymnomyzini is demonstrated, and a hypothetical phylogeny of the included species is generated from a matrix of 13 characters. From this phylogeny, a classification of two species groups, the tibialis and subsultans groups, is proposed and diagnosed. Species of the tibialis group occur in the New World and those of the subsultans group in the Old World. Maps, keys to subgenera and species, detailed distributional data, and illustrations (scanning electron micrographs, line, and scratchboard drawings) are provided to assist in the identification of the species.