The Ants of Africa
Genus Tetramorium
Tetramorium guineense (Bernard)

Tetramorium guineense (Bernard)

return to group key {link to the Hymenoptera Name Server} Type location Guinea (Xyphomyrmex weitzeckeri Em., race guineensis n. sbsp., Bernard, 1952: 251, illustrated, worker) from Mt. Nimba, Nion Forest, at 700 m, one worker (as Xiphomyrmex weitzeckeri race guineensis, by Lamotte); also one worker from Nimba north-east forest by Villiers .


{Tetramorium guineense}Bernard's limited note (1952) is at {original description}. Bolton's modern description (1980) is at {original description}.

Note The "Tetramorium guineense" listed by Wheeler (1922), as originally Formica guineensis Fabricius 1793, is defined as Pheidole guineensis by Bolton (1977, see, Bolton, 1995).

WORKER - TL 2.9-3.7 mm; head with very coarse reticulate-punctate ground sculpture, including in the antennal scrobe. Postpetiole rounded in profile, much thicker than the petiole. Postpetiole without a carina but with two deep concave impressions. All dorsal surfaces with numerous elongate simple hairs. Colour deep glossy brown or reddish brown, often the gaster darker, sometimes nearly black (after Bernard, 1952; and Bolton, 1980, illustrated, alitrunk and pedicel).

Included in the revision of Hita Garcia, Fischer & Peters (2010). They confirm the variation in colour.


{Tetramorium guineense}The photomontage of the holotype from Guinea is collated from http://www.antweb.org/specimen.do?name=casent0101479.

Bolton (1980) described it as only from the rain forest zones of West and Central Africa. He listed findings from Liberia, at Reputa (W.M. Mann); and Ivory Coast, at Divo (L. Brader) and Tai Forest (T. Diomande). From Nigeria, he collected it at CRIN, but no examples were in the CRIN collection.

Early Ghana findings were from CRIG (B. Bolton), Begoro and Mt. Atewa (C. A. Collingwood), Kibi (D. Leston) and Kade (J. Majer). Also as Tetramorium guineense?, in cocoa leaf litter and once from his insolated canopy survey by Room (1971). Since found in leaf litter by Belshaw & Bolton (1994b) in Ghana, where they describe it as widespread (417 workers from 10 sites). Known as a tramp species (Bolton & Collingwood, 1975).

Nests are constructed in rotten stumps or dead logs still with bark, and workers forage on the leaf litter, being predaceous and attacking any soft-bodied arthropods, including Pheidole ants (Bolton, 1980).


Oxford University Museum specimens

Tetramorium guineense
B Taylor det.
Cameroun
A Fotso Kuate
Tetramorium spJ
21.ix.2007
Awae II
0354'30" N
1125'58"
Quadrat in fallow

1
{album}
Tetramorium guineense
B Taylor det.
Cameroun
A Fotso Kuate
Tetramorium spO

17.i.2008
Awae II
0354'30" N
1125'58"
Quadrat in fallow
1
{album}
Tetramorium guineense
B Taylor det.
Cameroun
A Fotso Kuate
Tetramorium guineense
30.xi.2005
Mangomo
0354'30" N
1125'58"
Aspirator
1
{album}
Tetramorium guineense
B Taylor det.
Cameroun
A Fotso Kuate
Sample 59
28.vii.2010
Nko’ondo
0354'30" N
1125'58"

1
{album}
Tetramorium guineense
B Taylor det.
Central African Republic
P Annoyer
Camp 1C

12-18.x.2008
Dzanga-Sangha NP
0303'58.3" N
1608'59.6" E
Camp 1; 528 m; Ayous Barber campement
1
{album}

{Tetramorium guineense}The photomontage is of a specimen from Central African Republic, Dzanga-Sangha NP; collector Philippe Annoyer (CAR Camp 1).



{Tetramorium guineense}The photomontage is of a worker from Cameroun; Nko'ondo; collector A Fotso Kuate (fk unmounted 59);


{Tetramorium guineense}The photomontage is of a worker from Cameroun; Mengomo; collector A Fotso Kuate (fk tetramorium guineense).

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2007, 2008, 2009, 2011, 2012, 2015 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.

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