Genaro, J. A., and L. Packer. “A Revision of the Genus Xenochilicola (Hymenoptera: Apoidea, Colletidae), With the Description of a New Species”. Zootaxa, vol. 1054, no. 1, Sept. 2005, pp. 1–14, doi:10.11646/zootaxa.1054.1.1.