Abstract
The flower fly genus Citrogramma is revised here. Seventeen new species are described; four lectotypes and one neotype are designated; two species are transferred from Xanthogramma to Citrogramma; and another Xanthogramma species, Xanthogramma fasciatum, is synonymized under Citrogramma clarum. Xanthogramma indica and Xanthogramma pruthii are considered junior synonyms of Scaeva latimaculata. Redescriptions, illustrations, synonymies, diagnoses, and distributional data are given for all species of Citrogramma recognized here, and an identification key is also provided. New specimens and species from New Caledonia, Taiwan, Nepal, and China expand the geographical range of the genus. The large number of new species proposed in this paper highlights the prevailing incomplete knowledge of this genus. New Guinea has the highest diversity of known Citrogramma species. © 2012 The Linnean Society of London, Zoological Journal of the Linnean Society, 2012, 164, 99–172.
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