Trizzino; Jäch & Ribera, 2011. Molecular and morphological analyses confirm two new species of the Hydraena emarginata–saga clade (Coleoptera, Hydraenidae) from Spain and France. Zootaxa, 2760: 29-38.
Paratype: Museu de Ciències Naturals (Zoologia) de Barcelona, MZB 2013-1846 (“Tirón river, Fresneda de la Sierra, Burgos, Spain“, 1 specimen)
Hydraena (Hydraena) fosterorum Trizzino, Jäch & Ribera, 2011