Trechus (Abunetrechus) bipartitus Raffray, 1885

Figs 17, 18, 23, 24-25

Trechus bipartitus Raffray, 1885: 318; locus typicus: "col du mont Abouna-Yousef (4024 m)".

Trechus bipartitus: Jeannel 1927: 194.

Trechus bipartitus: Pawłowski 2003: 157.

Trechus bipartitus: Ortuño and Novoa 2011: 137.

Trechus (s. str.) bipartitus: Quéinnec et al. 2021: 20.

Type material.

Not studied. The lectotype was designated by Quéinnec et al. (2021). Identification is based on the redescriptions of the species, including habitus and male genital figures of the type specimens, presented by Jeannel (1927) and Quéinnec et al. (2021), as well as on comprehensive material collected at the type locality (see below).

Additional material.

6 males, 9 females, Ethiopia, Amhara, Mt. Abuna Yosef, N-slope, 3800-3950 m, 12°07'52"N, 39°11'39"E, 4.III.2019, leg. D. Hauth, J. Schmidt, Yeshitla M., Yitbarek W. (CAF, CSCHM) ; 6 males, 12 females, ditto, S-slope, 3850-3900 m, 12°07'29"N, 39°11'21"E, 5.III.2019, leg. D. Hauth, J. Schmidt, Yeshitla M., Yitbarek W. (CSCHM, NHMAA); 5 males, 2 females, ditto, S-slope, 3700-3850 m, 12°09'10"N, 39°09'35"E, 5.III.2019, leg. D. Hauth, J. Schmidt, Yeshitla M., Yitbarek W. (CSCHM) .

Additions to the species description.

Mature species with elytra including suture blackish brown ( Quéinnec et al. 2021: "suture distinctly brown shiny"; this information is probably based on confusion with T. habeshanicus). Body length 4.1-4.7 mm ( Quéinnec et al. 2021: "> 4.5 mm"). Length of aedeagus 0.98-1.05 mm. PW/PL = 1.29-1.37; n = 20 ( Quéinnec et al. 2021: PW/PL = 1.6; this value is very probably based on a measurement error). PW/TL = 1.06-1.15; n = 20. EL/AL = 2.15-2.46; n = 10.

Differential diagnosis.

See Key to species of the subgenus Trechus Abunetrechus, below.

Distribution.

Endemic to the Abune Yosef Mountains of the northern Ethiopian Highlands.

Habitat.

As in T. (Abunetrechus) lalibelae Quéinnec & Ollivier (see below).