The Ants of Africa
Genus Monomorium
Monomorium bicolor Emery

bicolor-complex

Monomorium bicolor Emery

return to key {link to the Hymenoptera Name Server} Type location Ethiopia (Monomorium bicolor n. sp., Emery, 1877b: 368, worker; Bogos, Sciotel, Beccari; note the Mayr, 1901b: 7, queen description is probably Monomorium albopilosum
subspecies judaicum (Monomorium (Xeromyrmex) bicolor ssp., judaicum n. ssp., Menozzi, 1933b: 63, illustrated, worker) from Israel, Wadi Kelt
junior synonyms
aequatoriale (Monomorium (Xeromyrmex) bicolor Emery v. aequatoriale n. var., Santschi, 1926b: 240, worker) from Cameroun, collected at Great Batanga, by G. Schwab, 1911 - see http://www.antweb.org/specimenImages.do?code=casent0913561
coerulescens (Monomorium bicolor Em. var. coerulescens n. var., Santschi, 1912c: 148, worker) from Djibouti
rufibasis (Monomorium bicolor Em. v. rufibasis n. var.,Santschi, 1914d: 353, worker, in key) from Egypt
uelense (Monomorium (Xeromyrmex) bicolor Emery v. ulense n. var., Santschi, 1926b: 239, worker) from Zaïre, Haur Uele, L Burgeon - see http://www.antweb.org/specimenImages.do?code=casent0913563
tropicale (Monomorium (Xeromyrmex) bicolor Emery v. tropicalie n. var., Santschi, 1926b: 240, all forms) from Zaïre, Stanleyville - see http://www.antweb.org/specimenImages.do?code=casent0913562
(see Bolton, 1995) .


Emery's (1877b) description is at {original description}. Santschi's (1912c) description of coerulescens is at {original description} Santschi's (1914d) note and brief key is at {original description}. Santschi's (1926b) description of several varieties is at {original description} Menozzi's (1933b) illustrated description of judaicum is at {original description} Bolton's modern description (1987) is at {original description}.


{Monomrium bicolor} Nigeria specimen (Taylor, 1980a: 29) - WORKER. TL 2.89 mm, HL 0.78, HW 0.62, SL 0.67, PW 0.37
Others TL 3.2-3.9 (Bolton, 1987). Colour orange-brown, gaster black. Head, alitrunk and pedicel densely spiculate. Few erect hairs on the gaster, pedicel and the anterior of the head; short but sparse pilosity all over.

Widely distributed throughout Africa north of the Equator, principally in drier areas; in forest zones on paths where open to the sun. Wheeler (1922) listed it also from Guinea (Kindia and Mamou, by F. Silvestri) and Ivory Coast (by Lohier). In Guinea the Mt. Nimba surveys found it to be abundant in savanna and forest, although not above 1200 m (Bernard, 1952).

Nests in open ground, in Nigeria, I found it not common at CRIN, but forages on the ground and will tend aphids on cocoa flowers near ground level. Bolton (1987) listed CRIN (B. Bolton, B. Taylor), Mokwa (C. Longhurst), Bakura and Sokoto (E.A. Mill) and near Lake Chad (J.C. Deeming).

In Ghana from Mole Game Reserve (J.C. Grieg), Bolgatanga, Mampong and Tumu (P.M. Room) (Bolton, 1987). Listed from open ground at the Mampong Cemetery farm by Room (1971). A single worker was found in leaf litter under primary forest at Mankrang Forest Reserve by Belshaw & Bolton (1994b).

Otherwise from Togo, at Tové (B. Dufour); Liberia, at Monrovia (no details); and Cameroun, at Great Batanga and Metet (G. Schwab) and Nko'emvon (D.A. Jackson).

New here: photomontage of a queen (see bottom).


Monomorium bicolorThe photomontage of the type worker is collated from http://www.antweb.org/specimen.do?name=casent0904601


Oxford University Museum specimens


{Monomorium bicolor}The photomontage is of workers collected in Cameroun (McKey Wolbachia project, Cameroon 110) - south-western tropical coastal forest area between Edéa and Campo.


{Monomorium bicolor}Photomontage of a specimen from Burkina Faso, Ouagadougou, 12.23.07° N 001.29.14° W, elev 293 m; 9.ii.2009; collector David King; King 94; vacant lot in residential area; foraging singly.


{Monomorium bicolor}The photomontage is of a worker from Ghana, collected by S Sky Stephens, 2006.


{Monomorium bicolor}Photomontage of a worker from Senegal, Thiés; 2012; collector Lamine Diamé (79).


{Monomorium bicolor}Photomontage of a queen from Senegal, Thiés; 2012; collector Lamine Diamé (79).

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© 2007, 2008, 2009, 2013 - Brian Taylor CBiol FSB FRES
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