Neoplea argentina (Drake & Chapman, 1953)

Plea argentina Drake & Chapman, 1953: Proc. Biol. Soc. Washington, 58–59.

Neoplea argentina: Bachmann, 1968: Revta. Soc. Ent. Arg., 122, 127.

Material examined. San Ignacio RS: 4 ♂, 2 ♀, Camping Monterrey, Aguará pedestrian path, long walkway, marshes, 27°52’14.58’’S, 56°52’59.76’’W, 18.xi.2018. Yahaveré RS: 1 ♂, Caaby Aguilar, roadside marshes, 28°24’03.4”S, 57°51’31.3”W, 8.xi.2015.

General distribution. Argentina (Bachmann & López Ruf 1994).

Habitat. Neoplea argentina has been found in lagoons, lakes, marshes, and in standing or slow-moving water of streams and rivers (Merlassino & Schnack 1979; Poi de Neiff 1983; Bachmann & López Ruf 1994; Poi de Neiff & Neiff 2006; Fontanarrosa et al. 2013).

This species was previously recorded from Iberá in association with Egeria najas, Salvinia biloba and Potamogeton sp. (Poi de Neiff 1993, 2003). During the present study, it was collected from marshes with dense floating, emergent and submerged vegetation (mainly S. biloba) in unshaded and shaded areas. This species was collected in association with the above mentioned vegetation in the Paraná River (Argentina) (Poi de Neiff & Neiff 2006).

Remarks. Neoplea argentina was collected in INR together with N. maculosa . The records from Brazil need confirmation (Bachmann 1968; Nieser & Melo 1997; Heckman 1998; Souza et al. 2006).