The ant genus Monomorium was established by Mayr (1855) for the newly described
species M. minutum Mayr (which was given the new name Monomorium monomorium
Bolton (1987:287)). This genus includes more than 300 species and subspecies (Bolton
1995; Bolton et al. 2007) found in all zoogeographic regions with most species occurring
in the Old World tropics and temperate regions (Brown 2000). Taxonomic revisions
of the Australian and Malagasy Monomorium fauna were carried out by Heterick
(2001, 2006) respectively. The Afrotropical Monomorium fauna was comprehensively
revised by Bolton (1987). Two new South American species of Monomorium were described
by Fernández (2007) and notes on the genus were presented. The Monomorium
fauna of Arabian Peninsula was reviewed and listed giving 53 species for the region
(Collingwoood and Agosti 1996). Most species of Monomorium nest in rotten wood,
under stones, or directly in the soil.