Revision of Trechus Clairville, 1806 of the Bale Mountains and adjacent volcanos, Ethiopia (Coleoptera, Carabidae, Trechini)
Author
Schmidt, Joachim
University of Rostock, Institute of Biosciences, General and Systematic Zoology, Universitätsplatz 2, 18055 Rostock, Germany. University of Marburg, Fb. 17 - Biologie, Karl-von-Frisch-Strasse 8, 35043 Marburg, Germany. Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Passeig Maritim de la Barceloneta 37, 08003 Barcelona, Spain. MECADEV - UMR 7179 MNHN / CNRS, Paris, France.
schmidt@agonum.de
Author
Faille, Arnaud
arnaud1140@yahoo.fr
text
European Journal of Taxonomy
2018
2018-06-21
446
1
82
journal article
22084
10.5852/ejt.2018.446
08fb092e-b3df-47c4-a1ad-8ea8ffd2457a
3829902
56E50F4E-6A7E-4CE6-963E-3B49AA7A03B6
Trechus harryi
sp. nov.
urn:lsid:zoobank.org:act:
F8A18087-F403-41A6-9F81-FD7FC8D38944
Figs 27
,
31
,
35
,
50–51
Diagnosis
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.
Etymology
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
Holotype
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).
Paratypes
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
).
Description
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.
Distribution
Known only from the southern slope of the Bale Mts, south, east and west of the village Rira, at altitudes of
2070–2690 m
.