Oecetis amazonica (Banks 1924)

This species is widely distributed in South America, occurring in Argentina, Brazil, Peru, Venezuela, and Bolivia. In Brazil, it occurs only in the Amazon basin, Amazonas state, northern region. Herein, we extend the distribution of the species to Pantanal floodplains, in Mato Grosso do Sul state, central-western region.

Material examined. BRAZIL: Mato Grosso do Sul: Ladário, Pantanal, Rio Paraguai floodplain, lake near Pousada Porto Vitória Régia, 19°01’10.00”S, 57°33’02.10”W, 91 m, 14.ix.2008, light trap, A.M. Sanseverino leg., 4 males (DZRJ 3553); same data except 16.iv.2008, 3 males (DZRJ 3557).