GONZALEZ, V.H., MANTILLA, B. and PALACIOS, E. 2006. Foraging activity of the solitary andean bee, Anthophora walteri (Hymenoptera: Apidae, Anthophorini). Revista Colombiana de Entomología. 32, 1 (Jun. 2006), 73–76. DOI:https://doi.org/10.25100/socolen.v32i1.9368.