Tenagobia fuscata (Stål, 1859)

Sigara fuscata Stål, 1859: Kongl. Svensk. Freg. Eugenies Resa Omkring Jorden. IV. Zool., 268.

Tenagobia fuscata: Bergroth, 1899: Ent. Mon. Mag., 2d Series, 282.

Material examined. Laguna Iberá RS: 2 ♀, Lobo Cuá Stream, 28°32’37.14’’S, 57°12’3.89’’W, 2.xii.2012; 1 ♂, 1 ♀, Lobo Cuá Stream, 28°32’52.66’’S, 57°12’38.56’’W, 2.xii.2012.

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

Habitat. Tenagobia fuscata has been found in the margins of ditches and lagoons exposed to sunlight and with floating, emergent, and submerged vegetation (Ronderos et al. 1969; Nieser 1977; Bachmann 1979, 1981; Bachmann & Farina 1989). This species has also been collected in artificial channels, streams and rivers that are slow to moderately fast-flowing (Bachmann 1962c, 1979, 1981; Bachmann & Farina 1989; Fernández & López Ruf 2006). It seems to prefer permanent shaded habitats (including small ones) with dense emergent and submerged vegetation and organic debris (Bachmann 1981). This species has also been taken at lights (Dellapé & Carpintero 2012).

At the INR, only a few specimens were collected from the vegetated margins of the Lobo Cuá Stream.

Remarks. The collection of T. fuscata from INR represents the first record from Corrientes Province.