Trechus angavoensis, 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 : 60-61

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.3848523
persistent identifier	https://treatment.plazi.org/id/F0880D26-2631-49C1-9848-E868F25E6AAA
taxon LSID	lsid:zoobank.org:act:F0880D26-2631-49C1-9848-E868F25E6AAA
treatment provided by	Valdenar
scientific name	Trechus angavoensis
status	sp. nov.

Treatment

Trechus angavoensis View in CoL sp. nov.

urn:lsid:zoobank.org:act:F0880D26-2631-49C1-9848-E868F25E6AAA

Figs 92 View Figs 91–94 , 96 View Figs 95–98 , 100 View Figs 99–102 , 128 View Figs 126–137

Diagnosis

Differs from T. ericalis by the slenderer aedeagal median lobe with bag-shaped copulatory piece smaller and less markedly sclerotized, from T. fisehai sp. nov. and T. abalkhasimi sp. nov. by the less markedly bent median lobe with larger copulatory piece, from T. grandipennis sp. nov. by the distinctly smaller length of body and aedeagal median lobe, and from T. sanettii sp. nov. by the transverse patterns of elytral microsculpture. The bag-like shape of the copulatory piece is very similar to that of T. batuensis , however, the latter species differs by the median lobe more markedly bent behind basal bulb, and by almost isodiametric patterns of elytral microsculpture.

Etymology

The specific epithet refers to Angova, which is the local name of the valley and surrounding mountains were the new species occurs.

Material examined

Holotype

ETHIOPIA: ³, Oromia, western Bale Mts, above Dodola , alt. 3400–3700 m, 06°51′ N, 39°14′ E, Dec. 2006 ( CSCHM, registration number ZSM _COL_2018_022).

GoogleMaps

Paratype

ETHIOPIA: 1 ³, same data as for holotype ( CSCHM).

Description

BODY LENGTH. 4.1–4.3 mm (n = 2).

PROPORTIONS (n = 2). PW/HW = 1.40–1.41; PW/PL = 1.36–1.40; PW/PBW = 1.23–1.24; EW/PW = 1.58; EL/EW = 1.37.

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

HEAD. Tempora 0.4–0.5 times as long as eyes; proportions of the first four antennomeres as follows: 1/0.85/0.9/0.8. In all other characters as described in T. sanettii sp. nov.

PROTHORAX. Parascutellar stria moderately short and deep; anterior discal seta in third stria located near the end of the anterior elytral quarter, posterior one in elytral middle. In all other characters as described in T. sanettii sp. nov.

LEGS. As described in T. sanettii sp. nov.

MALE GENITALIA. EL/AL = 2.75–2.77. Aedeagal median lobe moderately short, in lateral view moderately bent behind basal bulb, its ventral margin almost straight from the end of the basal third towards apex, its dorsal margin slightly convex; apical lamella moderately short, button-like shaped with tip slightly bent upward; basal bulb and sagittal aileron average. Endophallic copulatory piece moderately sclerotized, bag-like shaped, located in apical half of median lobe, in lateral view distally narrowed, with apex rounded.

Distribution

Known only from the type location, on the northern slope of the western Bale Mts above Dodola city (Angavo Valley), at altitudes between 3400 and 3700 m.