Flores, G. E., and P. Vidal. “Systematic Position and Cladistic Analysis of Gyrasida Koch, a Remarkable Genus of Praocini (Coleoptera: Tenebrionidae) from Chile”. Zootaxa, vol. 1978, no. 1, Jan. 2009, pp. 48–62, doi:10.11646/zootaxa.1978.1.2.