Perkins, P.D. & Ribera, I. (2020)

Three new species and DNA sequence data of the rare South American water beetle genus Adelphydraena Perkins, 1989 (Coleoptera: Hydraenidae)

. Zootaxa, 4858 (1), 35–52.
https://doi.org/10.11646/zootaxa.4858.1.2