brunnea Priesner, 1932

(Figs 26, 61, 79, 120)

Described from Mexico, with two synonyms from that country and two further synonyms from Panama and Guatemala, this dark winged species appears to be widespread in the Neotropics. It has been found in flowers of Bidens (Asteraceae) in Minas Gerais. Postocular setae pair I is usually absent, antennal segment III has the pedicel weakly dilated, and the posteromarginal comb on tergite VIII is irregular and with short teeth. Males studied are distinctively paler and lack a posteromarginal comb on tergite VIII.