Helicopsyche (Ferropsyche) rentzi Denning & Blickle 1979

New Records (1 locality). PANAMA: Veraguas Province • Cuenca 097; Santa Fe District; Santa Fe National Park; Río Piedra de Moler; PSPSCB-PNSF-C097-2017-011; 8.55343°N and 81.17675°W; 395 m a.s.l.; 20 April 2017; A. Cornejo, T. Ríos, E. Álvarez, C. Nieto, leg.; UV light trap; in alcohol; 1 male; COZEM-RJB-2019-358 .

Distribution. Costa Rica (type country), Panama.

Identification. This species was identified from keys, descriptions, and illustrations found in the publications by Denning & Blickle (1979), Johanson (2002, 2003), Johanson & Malm (2006), and Johanson & Holzenthal (2010). This species, based on the boomerang-shaped inferior appendages, bears a slight resemblance to H. vergelana Ross 1956 . It differs from this and other species by the ventrad-directed tergum X and the overall shape of the inferior appendages in lateral and dorsal views, each with the distal portion <1.5X as broad as its distal portion in lateral view.