Trechus fulvus

Key to the Iberian species of the ��� T. fulvus -group��� using aedeagus characters 1. Median lobe of aedeagus visibly turned towards left in dorsal view........................................................................... 2 - Median lobe of aedeagus not turned towards left in dorsal view................................................................................ 7 2. Inner sac very simple with a triangular, arrow-shaped lamina; second lamina (in lateral view) narrowed and the distal end slightly curved downward. .......................................................................................... T. martinezi -lineage ��� 3 - Inner sac equipped with two pieces, one lamina forming a cylinder open at the left followed by another smaller, rectangular-shaped lamina (Fig. 6 a)........................................................................................... T. gloriensis Jeanne, 1970 3. Apical lamina short. Internal sac with a very conspicuous close lamina (in lateral view) pouch-shaped with the apex curved downwards. Species from the southwest of the Baetic range (province of Malaga) (Fig. 6 b)........................... ................................................................................................................................................... T. breuili Jeannel, 1913 - Apical lamina hypertrophied. Inner sac with close lamina inconspicuous (in lateral view). Species from the east of the Baetic range (province of Alicante)....................................................................................................................... 4 4. Apical lamina longer than the pieces of the internal sac............................................................................................. 5 - Apical lamina shorter, roughly as long as the pieces of the internal sac..................................................................... 6 5. Apical lamina in lateral view, with truncated apex (slightly hooked) (Fig. 6 c)..................... T. beltrani Toribio, 1990 - Apical lamina in lateral view, progressively thinned and pointed at the end (sword-shaped) (Fig. 6 d)........................ .......................................................................................................................................... T. alicantinus Espa��ol, 1971 6. Apical lamina slightly twisted and wider at base than in the middle (Fig. 6 e) ..................... T. martinezi Jeannel, 1927 - Apical lamina strongly twisted and with the base only slightly wider than the middle (Fig. 6 f)................................................................................................................................................................ T. torressalai Ortu��o & Arillo, 2005 7. Apical lamina short and sharp (in dorsal view), raised and hook-shaped (in lateral view). Internal sac with poorly defined conical parts. Species native to the north of the Iberian Peninsula (Burgos and La Rioja) (Fig. 7 a)................................................................................................................................................................ T. arribasi Jeanne, 1988 - Apical lamina forming a subtriangular area (in dorsal view); the apex blunt finished in lateral view. Sac with two pieces, a triangular lamina and a long, narrow lamina (in lateral view)...................................................................... 8 8. Internal sac with a narrow lamina (in lateral view) conspicuous and strongly curved downwards. Species from North Africa (Morocco and Algeria) and from the southern tip of the Iberian Peninsula (C��diz) (Fig. 7 b)............................ ........................................................................................................................................ T. lallemantii Fairmaire, 1859 - Internal sac with the lamina slightly spatulated, curved downwards ................................................... T. fulvus -lineage 9. Internal sac without a plate of dorsal scales. Species from the Estremenho karstic massif (Serra d���Aire/S��o Mamede Plateau) (Fig. 7 c).................................................................................................... T. lunai Reboleira & Serrano, 2009 - Internal sac with a plate of dorsal scales.................................................................................................................... 10 10. Median lobe (lateral view) strongly enlarged in the middle region; apical region of the median lobe (lateral view) with dorsal margin slightly downing towards apex. Species from the Estremenho karstic massif (Serra dos Candeeiros) (Fig. 7 d) .................................................................................................................. T. machadoi Jeannel, 1941 - Median lobe (lateral view) not enlarged in the middle region................................................................................... 11 11. Apical region of the median lobe, in lateral view, with dorsal margin abruptly downing before apex. Species from the Estremenho karstic massif (Santo Ant��nio Plateau) (Fig. 7 e). ...................... T. gamae Reboleira & Serrano, 2009 - Development of median lobe almost parallel............................................................................................................ 12 12. Internal sac with a thin close lamina large and twisted, in lateral view. Median lobe with dorsal margin slightly downing before apex. Species from the Montejunto karstic massif (Fig 7 f)........................................... T. tatai n. sp. - Internal sac with the close lamina shorter and spatula-shaped. Apical lamina longer (Fig. 7 g)....................................................................................................................................................................................... T. fulvus Dejean, 1831
Published as part of Reboleira, Ana Sofia P. S., Ortu��o, Vicente M., Gon��alves, Fernando & Orom��, Pedro, 2010, A hypogean new species of Trechus Clairville, 1806 (Coleoptera, Carabidae) from Portugal and considerations about the T. f u l v u s species group, pp. 15-26 in Zootaxa 2689 on pages 24-25, DOI: 10.5281/zenodo.199484
{"references":["Jeanne, C. (1970) Carabiques nouveaux (3 e note). (Col Caraboidea). Bulletin de la Societe entomologique de France, 75, 240 - 247.","Jeannel, R. (1927) Monographie des Trechinae 2. Morphologie comparee et distribution geographique d'un groupe de Coleopteres. L'Abeille, 33, 1 - 592.","Ortuno, V. M. & Arillo, A. (2005) Description of a new hypogean species of the genus Trechus Clairville, 1806 from eastern Spain and comments on the Trechus martinezi - lineage (Coleoptera: Adephaga: Carabidae). Journal of Natural History, 39 (40), 3483 - 3500.","Reboleira, A. S. P. S., Goncalves, F. & Serrano, A. (2009) Two new species of cave dwelling Trechus Clairville, 1806 of the fulvus - group (Coleoptera, Carabidae, Trechinae) from Portugal. Deutsche Entomologische Zeitschrift, 56 (1), 101 - 107.","Jeannel, R. (1941) Premieres explorations des grottes du Portugal par M. A. de B. Machado. Coleopteres. Anais da Faculdade de Ciencias do Porto, 26 (2), 5 - 15."]}