Sæther, O. A., and E. A. Oyewo. “Keys, Phylogenies and Biogeography of Polypedilum Subgenus Uresipedilum Oyewo et Saeher (Diptera, Chironomidae)”. Zootaxa, vol. 1806, no. 1, June 2008, pp. 1–34, doi:10.11646/zootaxa.1806.1.1.