Reference

Arnaud Faille, Charles Bourdeau, Xavier Belles, Javier Fresneda (2015): Allopatric speciation illustrated: The hypogean genus Geotrechus Jeannel, 1919 (Coleoptera: Carabidae: Trechini), with description of four new species from the Eastern Pyrenees (Spain) – Arthropod Systematics and Phylogeny – 73: 439 - 455.