Trechus harryi, 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: 30-31

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Trechus harryi

sp. nov.

Trechus harryi   sp. nov.

Figs 27 View Figs 25–28 , 31 View Figs 29–32 , 35, 50–51 View Figs 37–56


Very similar to the above-described T. dodola   sp. nov. and T. adaba   sp. nov., but base of pronotum distinctly broader than apical margin, and aedeagal median lobe larger and distinctly slenderer. The new species differs additionally from T. adaba   sp. nov. by the lighter body colour and less iridescent elytra, and by the more markedly sclerotized endophallus. For comparison with the likewise similar species T. harenna   sp. nov., see description of the latter below.


Dedicated to Mr. Ingmar Harry, Freiburg, who kindly provided us with Trechus   specimens for study, and who indicated to us the occurrence of this new species in the Harenna Forest near Rira.

Material examined


ETHIOPIA: ³, Oromia, Bale Mts, S slope below Rira , alt. 2380 m, 06°43′17″ N, 39°43′14″ E, Dec. 2006 ( CSCHM, registration number ZSM _COL_2018_011).



ETHIOPIA: 10 ³³, 17 ♀♀, same data as for holotype ( CAF, CSCHM). 1 ³, same data as for preceding but alt. 2070 m, 06°41′04″ N, 39°43′44″ E, 15 Dec. 2016 ( CSCHM); 3 ³³, Bale Mts, Harenna Forest, E Rira, alt. 2690 m, 06°43′25″ N, 39°45′25″ E, Feb. 2007 ( CSCHM); 2 ♀♀, same data as for preceding but 13 Dec. 2017 ( CSCHM); 1 ³, 1 ♀, Bale Berge, Kacha Camp, alt. 2370 m, 6.717 N, 39.726 E, 10 Dec. 2012 ( CIH); 2 ³³, 9 ♀♀, Harenna Forest, W Rira, alt. 3000 m, 06°45′57″ N, 39°41′47″ E, 14 Dec. 2017 ( CAF, CSCHM, ZMAA).

Additional material

ETHIOPIA: 1 ♀, Bale Berge, Harenna Forest, “Gora Hawo” Wald [forest], 1950 m, 6.71 N, 39.61 E, 8–9 Dec. 2012 ( CIH).


BODY LENGTH. 2.5–2.8 mm (Ø = 2.65 mm, n = 15).

PROPORTIONS (n = 10). PW/HW = 1.43–1.50 (Ø = 1.46); PW/PL = 1.42–1.51 (Ø = 1.48); PW/PBW = 1.20–1.26 (Ø = 1.24); EW/PW = 1.37–1.49 (Ø = 1.44); EL/EW = 1.30–1.37 (Ø = 1.33).

COLOUR. As described in T. dodola   sp. nov.

HEAD. Tempora 0.5–0.6 times as long as eyes. In all other characters as described in T. dodola   sp. nov.

PROTHORAX. Pronotal base distinctly wider than apical margin, sides evenly rounded throughout, laterobasal foveae formed as tiny pits near basal margin. In all other characters as described in T. dodola   sp. nov.

PTEROTHORAX. First elytral stria indistinct but present on disc. In all other characters as described in T. dodola   sp. nov.

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

MALE GENITALIA. EL/AL = 3.03–3.22 (Ø = 3.13; n = 6). Aedeagal median lobe moderately small, rather slender, in lateral view more markedly bent in basal half, ventral margin almost straight towards apex; apical lamella moderately long, very faintly bent upward at tip. Basal bulb and sagittal aileron moderately large. Endophallus with copulatory piece indistinctly delimited, in lateral view more markedly sclerotized on dorsal side near ostium.


Known only from the southern slope of the Bale Mts, south, east and west of the village Rira, at altitudes of 2070–2690 m.


Bavarian State Collection of Zoology