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A review of the metallipennis-group and fuscinata-group of Fannia Robineau-Desvoidy (Diptera: Fanniidae)

Abstract On the basis of comparative morphology study and the group definition put forward by Chillcott (1961a), the conception of fuscinata-group is proposed for the first time. So former metallipennis-group is divided into 2 groups, namely metallipennis-group and fuscinata-group. Earlier studies on the former metallipennis-group are stated. The external morphology and terminalia differences between the two groups are discussed. The characters and distinguishable features of the two groups are given. To facilitate comparisons of the groups, a male key of the two groups and their resemblant groups is provided. A catalogue of fuscinata-group including 12 species is given. The known distributions of this group are China and Japan of Asia. In this paper, we put emphasis on the study of metallipennis-group, including characters, a male key, review of species, redescription, the analysis of systematic evolution and biogeography. 23 genitalia figures is given. Up to date, 6 species belong to metallipennis-group, occurring in Holarctic Region. One new species, Fannia medogensis Wang, n. sp., is described. Type specimens of the new species are deposited in the Institute of Entomology, Shenyang Normal University.