Reboleira, A. S. P. S.; Ortuño, V. M.; Gonçalves, F.; Oromí, P. A Hypogean New Species of Trechus Clairville, 1806 (Coleoptera, Carabidae) from Portugal and Considerations about the T. Fulvus Species Group. Zootaxa 2010, 2689, 15–26.