Sites, R. W., and L. F. Álvarez Arango. “Description of the Female of Procryphocricos Perplexus Polhemus (Hemiptera: Heteroptera: Naucoridae)”. Zootaxa, vol. 2562, no. 1, Aug. 2010, pp. 66–68, doi:10.11646/zootaxa.2562.1.5.