Abstract
ABSTRACT Sumichrastia Townsend, 1916, and Myioscotiptera Giglio-Tos, 1893, monotypic genera of Dexiini restricted to the Neotropical Region, are revised. A redescription and photographs of the female holotype of Sumichrastia aurea (Giglio-Tos, 1893), in addition to the first recognition, description and photographs of the male are given. This genus belongs to the group of Dexiini with spine-like setae on the abdomen. Furthermore, a redescription and photographs of male holotype are given for Myioscotiptera cincta Giglio-Tos, 1893, in addition to a new specific synonym: Oberonomyia palpalis Reinhard, 1964 new junior synonym of M. cincta. Updated diagnoses are given for Sumichrastia and Myioscotiptera to help differentiate them from the other Dexiini genera. Finally, a brief biography of the collector of both holotypes, the Swiss naturalist François Sumichrast, is given. http://www.zoobank.org/urn:lsid:zoobank.org:pub:D7147DE5-BA93-4B32-9D16-0C53CB80D2F5
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