Trechus fulvus
Creators: name: Reboleira, Ana Sofia P. S.
name: Ortuño, Vicente M.
name: Gonçalves, Fernando
name: Oromí, Pedro
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Trechus
Trechus fulvus

description: 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 Español, 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 Ortuño & 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 (Cádiz) (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/São 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 António 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
description: Published as part of Reboleira, Ana Sofia P. S., Ortuño, Vicente M., Gonçalves, Fernando & Oromí, 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