Torres, P.L.M., Michat, M.C. and Archangelsky, M. 2011. The immature stages of Tropisternus (Pleurhomus) sahlbergi (Sharp) (Coleoptera: Hydrophilidae), with considerations on the primary chaetotaxy of Tropisternus Soliera. Zootaxa. 2777, 1 (Feb. 2011), 25–40. DOI:https://doi.org/10.11646/zootaxa.2777.1.2.