Mattos, I., and J. R. M. Mermudes. “Synopsis of Paxillus MacLeay, 1819 (Coleoptera: Passalidae): Distributional Records and Descriptions of Four New Species from Brazil”. Zootaxa, vol. 3652, no. 3, May 2013, pp. 327–342, doi:10.11646/zootaxa.3652.3.2.