Steinovelia vinnula (Drake, 1951)

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 : 464-465

Steinovelia vinnula (Drake, 1951)

( Fig. 22 )

Velia vinnula Drake, 1951a : Rev. Entom., 375–376.

Paravelia vinnula: Polhemus, 1976 : J. Kansas Ent. Soc., 513.

Steinovelia vinnula: Polhemus & Polhemus, 1993 : J. New York Entomol. Soc., 397.

Material examined. Laguna Iberá RS: 2 ♀, route 40, roadside pond, 17.ii.2018. San Ignacio RS: 1 ♀, Camping Monterrey, Aguará pedestrian path, long walkway, flood-prone areas, 27°52.213’S, 56°52.977’W, 2.iii.2015; 1 ♀, Reserva Privada Don Luis, Monte Don Luis, ditches, 27°52.015’S, 56°54.914’W, 5.iii.2015; 1 ♀, Reserva Privada Don Luis, Monte Don Luis, roadside ditches, 27°52’0.60’’S, 56°54’54.18’’W, 16.xi.2018; 1 ♂, 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, pond, 28°24’10.4”S, 57°51’17.5”W, 6.xi.2015; 1 ♂, 2 ♀, Caaby Aguilar, marshes, 28°24’03.4”S, 57°51’31.3”W, 8.xi.2015.

General distribution. Brazil ( Moreira et al. 2020). Argentina: Corrientes (this work).

Habitat. Knowledge regarding this species is based on only three specimens, including the holotype. Nothing is known about its habitat associations except that it was found in Lago da Marchantaria in Amazonas State, Brazil ( Rodrigues & Álvarez Arango 2019) .

At the INR, S. vinnula was found in marshes ( Fig. 13 ), flood-prone areas, roadside ditches and ponds, in open water surface beside emergent vegetation, in shaded places.

Remarks. The American genus Steinovelia includes four species ( Moreira et al. 2020). Previously to this paper, only S. virgata had been recorded from Argentina ( Coscarón 2017). The collection of S. vinnula from INR extends the known range of this species from southeast Brazil to northeastern Argentina. The shape of the posterior femora, enlarged in S. vinnula and slender in S. virgata , unambiguously differentiate these two species.

Figures

FIGURES 18–22. Dorsal habitus of 18, Curicta granulosa; 19, Neogerris celeris; 20, Ovatametra obesa; 21, Paravelia rotundanotata; 22, Steinovelia vinnula. Scale: 18, 5.88 mm; 19, 2.33 mm; 20, 1.33 mm; 21, 1 mm; 22, 1.30 mm.

FIGURES 8–13. 8–11: Sampling sites from the Iberá Natural Reserve: 8, Carambola Stream; 9, Carambolita Stream; 10, Corriente River; 11, Pay Ubre Chico Stream. 12, Habitat of Paravelia rotundanotata at Corriente River (Itatí RS). 13, Habitat of Steinovelia vinnula at Caaby Aguilar in marshes (Yahaveré RS).