North America: Mexico (Monclova, Puente La Muralla, Coahuila, 1280 m) [1] .
Small earthen myrmycin ants, about 2-3 mm long, soldiers and workers are plain yellow (the larger-headed soldiers characteristic of the genus are larger). The occipital margin of the head of the soldier is concave. The antennae of the workers are 12-segmented with a 3-segmented mace. The head width of large soldiers is 1.46 mm (head length is 1.62 mm). The width of the head of small workers is 0.66 mm, the length of the head is 0.82 mm, the length of the scape is 1.16 mm. The stalk between the breast and the abdomen consists of two segments: the petiolus and postpetiolus (the latter is clearly separated from the abdomen). Pheidole ariel belongs to the species group Pheidole diligens Group and is similar to the species Pheidole desertorum , Pheidole vistana (and partially with Pheidole hyatti ), but differs in yellow color, smooth and shiny anterior and abdomen, and reduced propodeal spines. The species was described in 2003 by the American worldmecologist Professor Edward Wilson and named after the Greek word ariel (air elf), due to the thin, light body of both castes [1] .
Pheidole Encyclopedia of Life. Date of treatment May 10, 2013. Archived May 19, 2013.