Shockley, Floyd W., and Natalia J. Vandenberg. 2011. “Notes on the Taxonomic Identity of Bystus Hirtulus (Kirsch) and Transfer from Endomychidae to Coccinellidae (Coleoptera: Cucujoidea), With Designation of a Lectotype for Alexia Hirtula Kirsch”. Zootaxa 2868 (1). Auckland, New Zealand:62–68. https://doi.org/10.11646/zootaxa.2868.1.3.