Monomorium bicolor

Distribution
This taxon was described from Ethiopia. It is also found in the Dominican Republic, Djibouti, Eritrea, Kenya, Cameroon, Democratic Republic of the Congo, Egypt, Sudan, Burkina Faso, Gambia, Ghana, Liberia, Nigeria, Togo, Saudi Arabia and the United Arab Emirates.

Nomenclature

 *  bicolor. Monomorium bicolor Emery, 1877b: 368 (w.) ETHIOPIA. Mayr, 1901b: 7 (q.). Combination in M. (Xeromyrmex): Wheeler, W.M. 1922a: 868. Subspecies of subopacum: Santschi, 1927d: 244; Santschi, 1935b: 268. Revived status as species: Santschi, 1937d: 222; Bolton, 1987: 338. Senior synonym of coerulescens: Santschi, 1914d: 353 (in key); Bolton, 1987: 338; of aequatoriale, rufibasis, uelense, tropicale: Bolton, 1987: 338. Current subspecies: nominal plus judaicum.
 * coerulescens. Monomorium bicolor var. coerulescens Santschi, 1912c: 148 (w.) DJIBOUTI. Junior synonym of bicolor: Santschi, 1914d: 353 (in key); Bolton, 1987: 338.
 * rufibasis. Monomorium bicolor var. rufibasis Santschi, 1914d: 353 (diagnosis in key) (w.) EGYPT. Santschi, 1927d: 244 (q.m.). [Misspelled as rufobasalis by Santschi, 1926b: 240.] Junior synonym of bicolor: Bolton, 1987: 338.
 * aequatoriale. Monomorium (Xeromyrmex) bicolor var. aequatoriale Santschi, 1926b: 240 (w.) CAMEROUN. Junior synonym of bicolor: Bolton, 1987: 338.
 * tropicale. Monomorium (Xeromyrmex) bicolor var. tropicale Santschi, 1926b: 240 (w.q.m.) DEMOCRATIC REPUBLIC OF CONGO. Junior synonym of bicolor: Bolton, 1987: 338.
 * uelense. Monomorium (Xeromyrmex) bicolor var. uelense Santschi, 1926b: 239 (w.) DEMOCRATIC REPUBLIC OF CONGO. [Misspelled as uluense by Santschi, 1926b: 240.] Junior synonym of bicolor: Bolton, 1987: 338.