Trechus abalkhasimi, Schmidt & Faille, 2018

Schmidt, Joachim & Faille, Arnaud, 2018, Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini), European Journal of Taxonomy 446, pp. 1-82 : 59-60

publication ID	https://doi.org/ 10.5852/ejt.2018.446
publication LSID	lsid:zoobank.org:pub:56E50F4E-6A7E-4CE6-963E-3B49AA7A03B6
DOI	https://doi.org/10.5281/zenodo.3848521
persistent identifier	https://treatment.plazi.org/id/6DC1FFBF-60A7-40A4-A476-51905E98D392
taxon LSID	lsid:zoobank.org:act:6DC1FFBF-60A7-40A4-A476-51905E98D392
treatment provided by	Valdenar
scientific name	Trechus abalkhasimi
status	sp. nov.

Treatment

Trechus abalkhasimi View in CoL sp. nov.

urn:lsid:zoobank.org:act:6DC1FFBF-60A7-40A4-A476-51905E98D392

Figs 82 View Figs 79–82 , 86 View Figs 83–86 , 90 View Figs 87–90 , 131–132 View Figs 126–137

Diagnosis

Differs from T. ericalis by the much smaller copulatory piece of the endophallus, from T. grandipennis sp. nov. by the distinctly smaller length of body and aedeagal median lobe, from T. sanettii sp. nov. by the transverse patterns of elytral microsculpture, and by the copulatory piece which is located in the apical half of median lobe, from T. angovaensis sp. nov. by the more markedly bent aedeagal median lobe with smaller copulatory piece, and from T. fisehai sp. nov. by the larger aedeagal median lobe with button-like apex more markedly bent upward at tip (see key to species).

Etymology

The specific epithet refers to the beautiful Mt Abalk-hasim on which the new species occurs.

Material examined

Holotype

ETHIOPIA: ³, Bale Mts , Mt Abalk-hasim, river vall., alt. 3250 m, 06°44′34″ N, 39°48′34″ E, Feb. 2007 ( CSCHM, registration number ZSM _COL_2018_021).

GoogleMaps

Paratypes

ETHIOPIA: 13 ³³, 11 ♀♀, same data as for holotype ( CAF, CSCHM).

Description

BODY LENGTH. 3.5–4.4 mm (Ø = 4.06 mm, n = 20).

PROPORTIONS (n = 10). PW/HW = 1.37–1.44 (Ø = 1.39); PW/PL = 1.32–1.42 (Ø = 1.35); PW/PBW = 1.21–1.28 (Ø = 1.26); EW/PW = 1.60–1.69 (Ø = 1.64); EL/EW = 1.33–1.43 (Ø = 1.37).

COLOUR AND MICROSCULPTURE. As described in T. fisehai sp. nov.

HEAD. Tempora about half as long as eyes; proportions of the first four antennomeres as follows: 1/0.8/1/0.9. In all other characters as described in T. sanettii sp. nov.

PROTHORAX, PTEROTHORAX AND LEGS. As described in T. sanettii sp. nov.

MALE GENITALIA. EL/AL = 2.74–2.83 (Ø = 2.79, n = 6). Aedeagal median lobe moderately short, in lateral view more markedly bent behind basal bulb, its dorsal margin slightly convex, its ventral margin straight in middle, slightly bent downward before apex; apical lamella moderately long, distinctly bent upward at tip; basal bulb moderately large, sagittal aileron moderately small. Endophallic copulatory piece moderately sclerotized, moderately large, located in apical half of median lobe, shaped like a fish trap.

Distribution

Endemic to the southeastern slope of the Bale Mts. Known only from along a brook valley below Mt Abalk-hasim at an altitude of 3250 m.