Borges, P.A., Oromí, P., Serrano, A.R., Amorim, I.R. & Pereira, F. (2007)

Biodiversity patterns of cavernicolous ground-beetles and their conservation  status in the Azores, with the description of a new species: Trechus isabelae n. sp. (Coleoptera: Carabidae: Trechinae)

. Zootaxa, 1478 (1), 21–31.