Aquatic and semiaquatic Heteroptera (Insecta: Hemiptera) from Iberá Natural Reserve (Corrientes Province, Argentina) Author Mazzucconi, Silvia Ana Laboratorio de Entomología, IBBEA, CONICET-UBA., DBBE-FCEN, Universidad de Buenos Aires, Buenos Aires, Argentina. Departamento de Biología, Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste, Corrientes, Argentina. acarmua @ hotmail. com; https: // orcid. org / 0000 - 0002 - 1686 - 6381 Author Reyes, Cristina Armúa De 0000-0002-1686-6381 acarmua@hotmail.com Author Estévez, Ana Lía División Entomología, Museo de La Plata, La Plata, Buenos Aires, Argentina. text Zootaxa 2022 2022-03-01 5104 4 451 505 journal article 20385 10.11646/zootaxa.5104.4.1 fa7c1cbd-e54d-4f7f-a592-94d68743de77 1175-5326 6332126 D2B6F489-D907-4AC7-9C09-8464DF56BCED Buenoa unguis Truxal, 1953 Buenoa unguis Truxal, 1953 : Univ. Kansas Sci. 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 specimens were collected from the margins of the Medina Lagoon, in shallow waters with submerged, emergent, and floating vegetation. Remarks. The collection of B. unguis from INR represents the first record from Corrientes Province .