The Ants of Africa
Genus Crematogaster
Crematogaster (Atopogyne) togoensis Donisthorpe

Crematogaster (Atopogyne) togoensis Donisthorpe

return to key {link to the Hymenoptera Name Server}Type location Togo (Donisthorpe, 1945b: 270, worker), associated with coccids, 13 workers from cocoa by H.E. Box, 5.xi.1944- see below
Worker only described (see Bolton, 1995) .


WORKER (Donisthorpe, 1945b) - TL 3-4 mm
Head a little longer than broad, posterior border excised centrally; clypeus convex, anterior border rounded; frontal carinae narrow, flat and divergent posteriorly; antennal scape not reaching posterior of head; thorax rather short, contracted at metanotal junction, sides rounded anteriorly; pronotum finely longitudinally striate and punctate, punctures largest on sides, humeral angles rather prominent; mesonotum flat, very finely longitudinally striate and punctate, striae strongest on sides, with a strong carina from anterior margin to declivity, metanotal groove wide and deep; propodeal spines stout, short and sharp, projecting outwards; sides and dorsum striate; postpetiole broader than long with slight impression posteriorly; first segment of gaster finely punctate giving dull appearance; colour black, somewhat shining, with short decumbent yellow hairs, plus some outstanding long yellow hairs; antennal club and tarsi dirty yellow, mandibular apex reddish .

My feeling prior to June 2015 was that this is no more than a small worker of Crematogaster depressa - especially see the Cameroun workers on the linked pages.  The collection of five workers in Liberia (see below) appears to confirm the validity of togoensis. Notably different to depressa is the almost uniform near black colour and the lack of erect pilosity on the alitrunk.


{Crematogaster togoensis} The photomontage of a syntype worker is collated from http://www.antweb.org/specimen.do?name=casent0902073


Oxford University Museum specimens

Crematogaster (Atopogyne) togoensis
B Taylor det.
Liberia
E Poirier
Yekepa
SLAM 4
29.iii.2013
Nimba County
0733’38" N
0832’33" E
SLAM trap
Secondary forest
473 m asl

5
{album}

{Crematogaster togoensis}The photomontage is of a worker from Liberia; Yekepa Camp 4; collector E Poirier (Yekepa Camp 4 PF X).


{Crematogaster togoensis}The photomontage is of a second worker from Liberia; Yekepa Camp 4; collector E Poirier (Yekepa Camp 4 PF X).

Contents
2007, 2008, 2012, 2015 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.

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