Disease relations: Bunyamwera virus was isolated from specimens of Psorophora varinervis in Santa Fe Province (Mitchell et al. 1987).
Immature stages were collected by dipping from ground ponds, in wild and urban environments, temporary breeding habitats with clear or turbid water, with grass and aquatic macrophyta, full sunny or at shadow, and not very deep. Larvae were found in association with larvae of Ochlerotatus albifasciatus, Ochlerotatus fulvus, Ochlerotatus hastatus /oligopistus, Ochlerotatus serratus, Nyssorhynchus albitarsis, Anopheles neomaculipalpus, Culex bidens, Culex eduardoi, Culex maxi, Culex pilosus, Culex pilosus, Psorophora albigenu, Psorophora ciliata, Psorophora cingulata, Psorophora confinnis, Psorophora cyanescens, Psorophora ferox and Uranotaenia nataliae.