Trizzino, Marco, Manfred A. Jäch, Paolo Audisio, and Ignacio Ribera. 2011. “Molecular and Morphological Analyses Confirm Two New Species of the Hydraena emarginata–saga Clade (Coleoptera, Hydraenidae) from Spain and France”. Zootaxa 2760 (1). Auckland, New Zealand:29–38. https://doi.org/10.11646/zootaxa.2760.1.3.