The pollen from the scopae of a single female specimen collected on December 2001 in Chingaza Natural Park (Cundinamarca, 4° 30 N, 73° 40’N, 3150 m) was removed and kindly examined by G. Bogotá. Most of the pollen grains (~ 90 %) belonged to Gaultheria sp. (Ericaceae), a common genus of shrubs with showy red or white flowers. The remaining pollen types were, in order of abundance, as follows: Vallea stipularis L.F. (Elaeocarpaceae), Loutergia-Plagiocheilus (Asteraceae, tubiflorae group), and Oxalis sp (Oxalidaceae). Given the relatively low abundance of these pollen grains in the sample, they may be contaminants or were gathered accidentally during nectar visits.
Males can be recognized by the following combination of characters: clypeus with an inverted T-shaped yellow maculation, antennal flagellum strongly crenulate, and S5 with midapical margin bearing a long row of spines. Females can be distinguished by the combination of facial fovea about 2.4x longer than broad and antennal flagellum weakly crenulate, especially the basal segments.