Ranatra rabida White, 1879

Ranatra rabida White, 1879a: Trans. Ent. Soc. London, 270–271.

Material examined. San Ignacio RS: 1 ♂, 1 ♀, vehicle path, roadside ditches, 27°54’0.24’’S, 56°53’6.42’’W, 17.xi.2018; 1 ♂, 1 ♀, Camping Monterrey, Aguará pedestrian path, marshland, 27°52’14.10’’S, 56°52’59.70’’W, 18.xi.2018.

General distribution. Brazil, Paraguay, Argentina, Uruguay (De Carlo 1946; Moreira et al. 2011b).

Habitat. Little information exists regarding the habitat associations of this species. It has been recorded only from rivers (White 1879a; Montandon 1895).

At the INR, R. rabida was collected from the unshaded margins of marshlands and roadside ditches with dense floating, emergent, and submerged vegetation.

Remarks. This is the first record of R. rabida from INR. It was collected together with R. sjostedti . This species was previously recorded from Corrientes Province by De Carlo (1946, 1959, 1964 a, 1973), Nieser (1975) and López Ruf et al. (2003).