title: A new species of Duvalius from world's deepest cave (Coleoptera: Carabidae).
abstract: The new hypogean ground beetle, Duvalius abyssimus n. sp., from Krubera-Voronja, world's deepest cave (Arabika massif, Western Caucasus) is described and illustrated. Diagnostic morphological characters of the imago, male and female genitalia are provided. Its relations with other Duvalius Delarouzée species from the Western Caucasus geographic area are discussed. An updated overview of the biocoenosis of its peculiar habitat is made.
authors.affiliation: Departamento de Biologia and CESAM, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal Departamento de Biología Animal, Facultad de Biología, Universidad de La Laguna. 38206 La Laguna. Tenerife. Canary Islands, Spain; Email: sreboleira@ua.pt.
authors.forename: Ana Sofia P S
authors.initials: AS
authors.lastname: Reboleira
authors.affiliation: Departamento de Ciencias de la Vida, Facultad de Biología, Ciencias Ambientales y Química, Universidad de Alcalá, E-28871 - Alcalá de Henares, Madrid, Spain.; Email: vicente.ortuno@uah.es.
authors.forename: Vicente M
authors.initials: VM
authors.lastname: Ortuño
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D059552:Caves; D001517:Coleoptera / Q000033:anatomy & histology / Q000145:classification*; D017753:Ecosystem; D005260:Female; D008297:Male