Disease relations: the species is the vector of Venezuelan Equine Encephalitis virus in Venezuela, Colombia and Panamá (Sudia 1972, Turell et al. 1999, Weaver et al. 2004, Ortiz et al. 2005, Torres et al. 2017).
"The type locality for the lectotipe designated by Casal in Belkin et al. (1968) is Chaco Province; also see Knight & Stone (1977)." (Mitchell & Darsie, 1985).