Acostatrichia plaumanni, Mosely, 1939

Santos, Allan Paulo Moreira, 2020, A review of the Neotropical microcaddisfly genus Acostatrichia Mosely, 1939 with description of a new species from Brazil (Trichoptera: Hydroptilidae: Leucotrichiinae), Zootaxa 4755 (2), pp. 201-230 : 204

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.