Abstract
Espanol, 1971 (Coleoptera, Carabidae, Trechinae, Trechini). - An important population of Trechus barratxinai Espanol, 1971 was discovered in the Penyes de Roset, near the type locality (abyss of Barratxina, Xixona-Alicante, East Spain). This species, originally considered as cavernicolous, shows epigeal and lapidicolous life habits, as now discovered. A detailed laboratory study revealed the presence of wings which had been overlooked in the concise description of the species. The development of wings confirms the suspicion that, as in other species in this genus, barratxinai has geophilic, lucifugous and hygrophilous habits but is not a cavernicolous (troglobiont) species. The species description is completed with details on the anatomy of the female genitalia. Also, the taxonomic position of barratxinai is questioned and its position within the T. austriacus-group, near diecki Putzeys 1870, its geographical neighbour, is proposed. Finally, the first data on the species biology and on its habitat characteristics are given.
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