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 Gelastocoridae Gelastocoridae is represented in Argentina by 10 species and subspecies in three genera ( Coscarón 2017 ). Estévez et al. (2003, 2010) and Estévez & López Ruf (2006) previously reported two species of Gelastocoridae from INR, which were not collected during this study: Nerthra gaucha Estévez & Schnack, 1981 and Nerthra ranina (Herrich-Schaeffer, 1853). Nerthra nepaeformis (Fabricius, 1775) and N. unicornis (Melin, 1929) , reported from Corrientes Province (Schnack & Estévez 1979 ; Bachmann 1998 ), have not been collected from INR.