Acostatrichia plaumanni Group

Remarks. This species group includes the type species and another 5 species: A. araca sp. nov., A. elvesta Oláh & Flint 2012, A. fluminensis (Santos & Nessimian 2010), A. plaumanni Mosely 1939, A. simulans Mosely 1939, and A. spinifera Flint 1974 . Males of these species share the following morphological features: (1) a short costal bulla usually on each forewing (absent in A. fluminensis); (2) abdominal segment VII with two short ventromesal processes; (3) inferior appendages short and completely separated from each other; and (4) segment IX with a conspicuous pair of dorsolateral processes.