Figures 21-28 from: Faille A, Bourdeau C, Fresneda J (2012) Molecular phylogeny of the Trechus brucki group, with description of two new species from the Pyreneo-Cantabrian area (France, Spain) (Coleoptera, Carabidae, Trechinae). ZooKeys 217: 11-51. https://doi.org/10.3897/zookeys.217.3136

Figures 21-28 - Aedeagus in lateral view and detail of internal sac of 21, 22 Trechus beusti (Cueva de San Adrián), 23, 24. Trechus pieltaini (Cueva de Mairuelegorreta), 25, 26 Trechus bruckoides sp. n. (Montagnon) and 27, 28 Trechus brucki (Lac d'Anglas). CP2, secondary copulatory piece.