Monomorium atomum

In Yemen this species was found in humid leaf litter under a date palm tree where the soil was rich in accumulations of decayed animal faeces (Sharaf et al., 2017).

Identification
Worker. Small species (TL 1.20–1.30). Head distinctly longer than broad, feebly convex or parallel sides and feebly concave posterior margin; eyes small with four or five ommatidia in the longest row; petiole peduncle in profile short and without anteroventral process. Body smooth and shining. Colour uniform yellow (Sharaf et al., 2017).

Distribution based on Regional Taxon Lists
Afrotropical Region: Socotra Archipelago, Yemen. Oriental Region: Bangladesh, India.

Nomenclature

 *  atomum. Monomorium atomus Forel, 1902c: 210 (w.) INDIA. Bingham, 1903: 208 (q.). Combination in M. (Martia): Forel, 1910c: 252. Current subspecies: nominal plus aharonii, cooperi, integrium, procax.