Monomorium bicolor Emery
Type location Ethiopia
(Monomorium bicolor n. sp.,
Emery, 1877b: 368, worker; Bogos, Sciotel, Beccari; note the Mayr,
1901b: 7, queen description
is probably Monomorium
subspecies judaicum (Monomorium
(Xeromyrmex) bicolor ssp., judaicum
n. ssp., Menozzi, 1933b: 63,
illustrated, worker) from Israel, Wadi Kelt
(Xeromyrmex) bicolor Emery v. aequatoriale
n. var., Santschi, 1926b: 240, worker) from Cameroun,
Great Batanga, by G. Schwab, 1911 - see http://www.antweb.org/specimenImages.do?code=casent0913561
bicolor Em. var. coerulescens
n. var., Santschi, 1912c: 148, worker) from Djibouti
bicolor Em. v. rufibasis
n. var.,Santschi, 1914d: 353, worker, in key) from Egypt
(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
(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 . Santschi's (1912c) description of coerulescens
is at Santschi's (1914d) note
and brief key is at . Santschi's (1926b)
description of several varieties is at Menozzi's (1933b) illustrated description
of judaicum is at Bolton's modern description (1987) is at .
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
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).
The photomontage of the type worker is
collated from http://www.antweb.org/specimen.do?name=casent0904601
photomontage is of workers collected in Cameroun (McKey Wolbachia
project, Cameroon 110) - south-western tropical coastal forest area
between Edéa and
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.
photomontage is of a worker from Ghana, collected by S
Sky Stephens, 2006.
of a worker from Senegal, Thiés; 2012; collector Lamine Diamé (79).
of a queen from Senegal, Thiés; 2012; collector Lamine Diamé (79).