New data on the genus Oxytrechus Jeannel, 1927, with description of seven new species from Colombia and Ecuador (Coleoptera: Carabidae: Trechinae)

International audienceSeven new species of Oxytrechus Jeannel, 1927 are described: five from Ecuador (O. andersoni Giachino & Allegro n. sp., O. atahualpai Giachino & Allegro n. sp., O. bavierai Giachino & Allegro n. sp., O. fikaceki Giachino & Moret n. sp., and O. sciakyi Giachino & Allegro n. sp.) and two from Colombia (O. floresanus Giachino & Allegro n. sp. and O. ruizianus Giachino & Allegro n. sp.). Oxytrechus equatorianus Mateu, 1988 is re-established as a valid species. O. globosus Mateu, 1991 and O. convexus Mateu, 1991 are redescribed. New distributional data are given for O. balli Allegro, Giachino & Sciaky, 2008, O. belloi Giachino, Allegro & Baviera, 2014, O. llanganatisianus Mateu, 1988, O. moreti Mateu, 1988, O. onorei Allegro, Giachino & Sciaky, 2008, O. pierremoreti Allegro, Giachino & Sciaky, 2008 and O. vulcanus Mateu, 1988. An identification key is provided for the Oxytrechus species present in the Papallacta-Guamaní area (Ecuador, Pichincha/Napo provinces