Buenoa unguis Truxal, 1953 Aquatic and semiaquatic Heteroptera (Insecta: Hemiptera) from Iberá Natural Reserve (Corrientes Province, Argentina) Mazzucconi, Silvia Ana Reyes, Cristina Armúa De Estévez, Ana Lía Zootaxa 2022 2022-03-01 5104 4 451 505 694KB Truxal, 1953 Truxal 1953 [151,501,1770,1797] Insecta Notonectidae Buenoa Animalia Hemiptera 39 490 Arthropoda species unguis    Buenoa unguis Truxal, 1953: Univ. KansasSci. Bull., 1476–1479.   Material examined. Yahaveré RS: 1 ♂, 2 ♀, Medina Lagoon, 13.xii.2014.  General distribution. Venezuela, Brazil, Peru, Bolivia, Paraguay, Argentina ( Barbosa & Nessimian 2013).  Habitat.Very little information exists regarding the habitat associations of  B. unguis. It has been collected from rivers, ponds, as well as in stagnant pools along dry streams and streamlets ( Truxal 1953; Melo & Nieser 2004; Barbosa & Nessimian 2013). This species has also been taken at lights and collected in fish tanks ( Barbosa & Nessimian 2013). At the INR, only three specimenswere collected from the margins of the Medina Lagoon, in shallow waters with submerged, emergent, and floating vegetation.   Remarks.The collection of  B. unguisfrom INR represents the first record from Corrientes Province.