Heterocorixa brasiliensis Hungerford, 1928

Mazzucconi, Silvia Ana, Reyes, Cristina Armúa De & Estévez, Ana Lía, 2022, Aquatic and semiaquatic Heteroptera (Insecta: Hemiptera) from Iberá Natural Reserve (Corrientes Province, Argentina), Zootaxa 5104 (4), pp. 451-505 : 479

Heterocorixa brasiliensis Hungerford, 1928

Heterocorixa brasiliensis Hungerford, 1928 : Bull. Brooklyn Ent. Soc., 101.

Material examined. Itatí RS: 1 ♀, Itatí Rincón Island , 28°42.73’S, 58°6.69’W, 29.iii.2014 ; 1 ♂, 1 ♀, Estancia El Dorado , artificial pond, 28°45.60’S, 58°7.23’W, 31.iii.2014 . Laguna Iberá RS: 2 ♂, 2 ♀, Iberá Lagoon, Fraga pier, 28°31’50.00’’S, 57°11’13.68’’W, 3.xii.2012 ; 4 ♀, light trap, 28°32’48.65’’S, 57°11’48.015’’W, 14.ii.2018. San Ignacio RS: 2 ♂, 2 ♀, Camping Monterrey, Aguará pedestrian path, short walkway, marshes, 27°52.152’S, 56°52.884’W, 2.iii.2015 ; 9 ♂, 14 ♀, vehicle path, roadside marshland and ditches, 27°54.551’S, 56°53.254’W, 3.iii.2015; 1 ♂, vehicle path, roadside ditches, 27°53.263’S, 56°53.125’W, 3.iii.2015; 14 ♂, 10 ♀, Camping Monterrey, ditches, 27°52.610’S, 56°52.690’W, 3.iii.2015 ; 1 ♂, 1 ♀, Camping Monterrey, Aguará pedestrian path, artificial well, 27°52.286’S, 56°52.767’W, 4.iii.2015 ; 3 ♂, 5 ♀, marshlands in front of the ranger’s house, 27°49.413’S, 56°50.929’W, 4.iii.2015; 3 ♂, 5 ♀, road of “Las 600” in front of Monte Grande, marshlands, 27°50.991’S, 56°53.543’W, 5.iii.2015; 16 ♀, light trap, 5.iii.2015; 11 ♀, light trap, 27°49’26.52’’S, 56°50’52.26’’W, 16.xi.2018. San Nicolás RS: 1 ♀, marshland next to the barbecue area of the ranger station, 15.xii.2013; 2 ♂, 44 ♀, marshland next to the house for the rangers, 15.xii.2013; 10 ♀, light trap in the ranger station, 13–15.xii.2013. Yahaveré RS: 2 ♂, 2 ♀, Concepción de Yaguareté Corá, route 22, roadside marshes, 28°23’16.3”S, 57°54’25.6”W, 5.xi.2015 .

General distribution. Brazil, Ecuador, Argentina ( Moreira et al. 2011b).

Habitat. Heterocorixa brasiliensis seems to prefer shallow lentic habitats with sandy bottom and with dense vegetation in Iberá ( Bachmann 1981). This species was found in association with Leersia hexandra and Cabomba caroliniana ( Poi de Neiff 1984, 1993, 2003). It has also been taken at lights ( Bachmann 1981). During the present study, H. brasiliensis was collected from the margins with dense floating, emergent and submerged vegetation (mainly Azolla filiculoides , Pontederia azurea , P. crassipes , Hydrocleys nymphoides (Willd) Buchenau , Nymphoides indica and Salvinia biloba ) in lentic habitats (Iberá Lagoon, artificial ponds, marshes, marshlands and ditches), in unshaded areas. Additional specimens of this species were taken at lights at San Ignacio Ranger Station, San Nicolás Ranger Station, and Laguna Iberá Ranger Station.

Remarks. Heterocorixa brasiliensis was first recorded from INR by Bachmann (1979) and from the Galarza Lagoon by Poi de Neiff (1984).