Revision of the Neotropical genus Microchaetogyne Townsend, 1931 (Tachinidae: Dexiinae): lectotype fixation for the type species and a new synonymy

Microchaetogyne Townsend, 1931, a monotypic Dexiini genus restricted to the Neotropical Region, is revised with the proposal of the following new synonymy: Gigamyiopsis Reinhard, 1964 = Microchaetogyne, syn. nov. As a result, the following new combination is proposed: Microchaetogyne funebris (1964) comb. nov. In addition, a redescription, photographs, and lectotype fixation are provided for the type species Microchaetogyne melena, and a diagnosis is provided for M. funebris. Finally, an updated diagnosis for the genus Microchaetogyne and a key to the two known species are given.