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 Pelocoris binotulatus nigriculus Berg, 1879 Pelocoris nigriculus Berg, 1879 : Hemipt. Argentina , 188–189. Material examined. Laguna Iberá RS: 2 ♀ , Lobo Cuá Stream, 28°32’37.14’’S , 57°12’3.89’’W , 2.xii.2012 ; 1 ♀ , Iberá Lagoon, sample 1, 2.xii.2012 ; 4 ♂ , Baletón San Pedro , 3.xii.2012 ; 1 ♀ , Fernández Lagoon, 11.xii.2014 . San Nicolás RS: 1 ♂ , marshland next to the barbecue area of the ranger station, 15.xii.2013 ; 1 ♀ , marshland next to the house for the rangers, 15.xii.2013 . General distribution. Brazil , Bolivia , Argentina ( Moreira et al. 2011b ). Habitat. Pelocoris binotulatus nigriculus has been found in ponds, lagoons (with aquatic vegetation), marshlands (densely vegetated), streams and rivers ( Bachmann 1962c ; Fontanarrosa et al. 2004 ; López Ruf 2004 ; Melo & Nieser 2004 ; Torres et al. 2007 ). At the INR, specimens were collected from the margins of the Iberá Lagoon in shallow waters with emergent and floating vegetation (Estévez et al. 2003) and in Iberá in association with Salvinia biloba , Salvinia sp . , Pontederia crassipes , Nymphaea sp. , and Lemnaceae ( Poi de Neiff 2003 ; López Ruf 2004 ). During the present study, it was collected from unshaded margins with dense floating, emergent and submerged vegetation (mainly P. crassipes and S. biloba ) in lentic habitats (Iberá Lagoon, Fernández Lagoon and marshlands), and lotic habitats (Lobo Cuá Stream) in standing or slow-moving water. Remarks. The only published record from Colombia ( Morales-Castaño & Molano-Rendón 2008 ) needs confirmation.