Magrini 1998. [Preliminary diagnosis of two new Duvalius (s. str.) from Lazio (Coleoptera, Carabidae, Trechinae).] Avon, C.[Duvalius species and their evolutionary complex. Biogeographic atlas.], Laboratoire d'Entomologie Faune Hypogee et Endogee, Cagnes sur Mer, France, 1998: 1-159. Chapter pagination: 151-159