Microvelia hinei Drake, 1920

Microvelia hinei Drake, 1920: Ohio J. Sc., 207–208.

Material examined. Galarza RS: 1 ♂, Yacaré Stream, 16.iv.2013 ; 1 ♂, 1 ♀, Galarza Lagoon, Vizcaychipi channel, 16.iv.2013 ; 1 ♀, Galarza Lagoon, Hermanos Fleita channel, 16.iv.2013 ; 4 ♂, 1 ♀, Luna Lagoon, sample 2, 17.iv.2013 ; 1 ♂, Luna Lagoon, sample 3, 17.iv.2013 ; 1 ♂, Luna Lagoon, sample 4, 17.iv.2013 ; 1 ♂, Galarza Lagoon, Hermanos Fleita pier, 17.iv.2013 ; 1 ♂, Galarza Lagoon, sample 2, 18.iv.2013 ; 1 ♀, Galarza Lagoon, sample 4, 18.iv.2013 . Itatí RS: 2 ♂, 1 ♀, Estancia El Dorado, artificial channel that connects the place of arrival for boats with the Corriente River, 26.ix.2003 ; 6 ♂, 15 ♀, Corriente River, 26.ix.2003 ; 2 ♀, Itatí Lagoon, 28°41.92’S, 58°6.49’W, 28.iii.2014 ; 6 ♂, 10 ♀, Corriente River, 28.iii.2014 ; 10 ♂, 10 ♀, Itatí Rincón Island, 28°42.73’S, 58°6.69’W, 29.iii.2014 ; 3 ♂, Itatí marsh, 28°42.78’S 58°7.19’W, 29.iii.2014 ; 1 ♂, 1 ♀, Potrero Becasina, flood-prone areas in front of the ranger’s house, 28°44.93’S, 58°7.53’W, 30.iii.2014 ; 2 ♂, Corriente River, 28°44.18’S, 58°8.70’W, 30.iii.2014 ; 1 ♂, Establecimiento El Remanso, permanent pond, 31.iii.2014 ; 4 ♂, 2 ♀, Estancia El Dorado, artificial pond, 28°45.60’S, 58°7.23’W, 31.iii.2014 . Laguna Iberá RS : 1 ♀, Iberá Lagoon, sample 1, 2.xii.2012 ; 10 ♂, 10 ♀, Iberá Lagoon, Fraga pier, 28°31’50.00’’S, 57°11’13.68’’W, 3.xii.2012 ; 12 ♂, 15 ♀, Iberá Lagoon, Paso Claro, 28°33’29’’S, 57°11’37’’W, 16.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 ; 1 ♂, vehicle path, roadside marshland and ditches, 27°54.551’S, 56°53.254’W, 3.iii.2015; 1 ♂, Camping Monterrey, ditches, 27°52.610’S, 56°52.690’W, 3.iii.2015 ; 10 ♂, 10 ♀, Camping Monterrey, Aguará pedestrian path, artificial well, 27°52.286’S, 56°52.767’W, 4.iii.2015 ; 1 ♂, 1 ♀, marshlands in front of the ranger’s house, 27°49.413’S, 56°50.929’W, 4.iii.2015; 1 ♀, gate of “ Las 600”, roadside marshlands, 27°50.888’S, 56°53.037’W, 5.iii.2015 ; 7 ♂, 5 ♀, vehicle path, roadside marshland and ditches, 27°49’26.64’’S, 56°50’52.38’’W, 17.xi.2018; 4 ♂, 3 ♀, vehicle path, roadside ditches, 27°54’10.14’’S, 56°53’14.10’’W, 17.xi.2018; 4 ♂, 5 ♀, vehicle path, roadside ditches, 27°54’0.24’’S, 56°53’6.42’’W, 17.xi.2018; 24 ♂, 8 ♀, Camping Monterrey, Aguará pedestrian path, marshland, 27°52’ 14.10’’S, 56°52’59.70’’W, 18.xi.2018 ; 7 ♂, 6 ♀, Camping Monterrey, Aguará pedestrian path, long walkway, marshes, 27°52’14.58’’S, 56°52’59.76’’W, 18.xi.2018 ; 2 ♂, 1 ♀, Camping Monterrey, Aguará pedestrian path, pond and flood-prone areas, 27°52’26.76’’S, 56°52’48.78’’W, 19.xi.2018 ; 2 ♂, 1 ♀, Camping Monterrey, Aguará pedestrian path, pond, 27°52’17.46’’S, 56°52’45.18’’W, 19.xi.2018 . San Nicolás RS : 3 ♀, Carambola Stream, 28°12.165’S, 57°26.389’W, 13.xii.2013 ; 1 ♂, 1 ♀, Carambola Stream, 28°10.866’S, 57°26.224’W, 14.xii.2013 ; 1 ♀, Carambola Stream, 28°10.108’S, 57°25.787’W, 14.xii.2013 ; 1 ♂, Carambola Stream, 28°11.067’S, 57°26.567’W, 14.xii.2013 . Yahaveré RS: 3 ♂, Concepción de Yaguareté Corá, route 22, roadside marshes, 28°23’16.3”S, 57°54’25.6”W, 5.xi.2015; 1 ♂, Paso Cardozo, roadside marshes, 28°23’47.0”S, 57°52’36.2”W, 6.xi.2015 ; 2 ♂, Caaby Aguilar, pond, 28°24’10.4”S, 57°51’17.5”W, 6.xi.2015 ; 1 ♀, Campo Angelita, roadside marshes, 28°25’40.9”S, 57°49’12.3”W, 6.xi.2015 ; 1 ♀, Medina Lagoon, 28°33’52.6”S, 57°45’28.7”W, 7.xi.2015 . On the road to Itatí RS : 1 ♂, 1 ♀, Mercedes Department, Pay Ubre Grande Stream, Provincial Route 29, 25 km NW Mercedes, 25.ix.2003 ; 5 ♂, 2 ♀, Mercedes Department, Pay Ubre Chico Stream, Provincial Route 29, 25 km NW Mercedes, 27.ix.2003 ; 1 ♂, 2 ♀, Mercedes Department, Pay Ubre Chico Stream, Provincial Route 29, 28.iii.2014 .

General distribution. Canada, USA, Mexico, the Greater Antilles, the Lesser Antilles, Brazil, Peru, Argentina (Drake & Hussey 1951; Moreira et al. 2011b).

Habitat. Microvelia hinei is found in a wide range of aquatic habitats. It is usually associated with emergent or floating vegetation and mats of Sphagnum L. moss in standing water (pools, ponds, lakes, swamps, sloughs, marshes, ditches and artificial reservoirs), in unshaded areas (Wilson 1958; Polhemus & Chapman 1979; Bennett & Cook 1981; Vianna & Melo 2003; Pelli et al. 2006), but it has also been collected where vegetation was absent (Wilson 1958) and in shaded areas (Vianna & Melo 2003). It is also recorded from lotic habitats (creeks, streams and rivers) in standing water (Wilson 1958; Bennett & Cook 1981; Pereira & Melo 2007), and brackish pools (Wilson 1958).

At the INR, M. hinei was collected from margins with dense floating, emergent and submerged vegetation (mainly Pontederia azurea and Salvinia biloba) and filamentous algae in lentic habitats (Galarza Lagoon, Luna Lagoon, Iberá Lagoon, Medina Lagoon, Itatí Lagoon, ponds, marshlands, ditches and flood-prone areas) and lotic habitats in standing water (Yacaré Stream, Carambola Stream, Corriente River, Pay Ubre Grande Stream, Pay Ubre Chico Stream and artificial channels), mostly in unshaded areas.

Remarks. Microvelia hinei is one of the most widespread species in the INR and the most common species of Microvelia in the Reserve. It was often collected together with M. mimula . The collection of this species from INR represents the first record from Corrientes Province. Microvelia hinei was recorded from Argentina without any mention of localities (Coscarón 2017).