Sabella, G., C. Besuchet, and S. A. Kurbatov. “A Review of the Tychus Algericus Species Group (Coleoptera: Staphylinidae: Pselaphinae), North Africa”. Zootaxa, vol. 3065, no. 1, Oct. 2011, pp. 38–48, doi:10.11646/zootaxa.3065.1.4.