Myrmecocystus flaviceps is a monogynous ant species with a medium development rate. The queen measures 11–12 mm, while the workers range from 4–8 mm. They typically display a reddish head and thorax with a darker gaster. This species is known for its honey pot workers (repletes), which store liquid food in their distended abdomens.

They feed on insects, syrups, fruits, vegetables, and protein-rich foods. Humidity should be maintained at 40–60% in the arena and 50–70% in the nest, while the temperature should remain between 23–30 °C in the arena and 22–26 °C in the nest.

Myrmecocystus wheeleri is a monogynous ant species with colonies reaching up to 6,000–10,000 workers. They exhibit a moderate development speed. Queens measure approximately 12–14 mm in length, while workers range from 4.5 to 7 mm. Their coloration is generally light to reddish-brown, with a darker, often slightly translucent gaster. Like other species in the genus, they may develop repletes—workers specialized in storing liquid food. Their diet includes small insects, sugary liquids like nectar or syrup, fruits, jelly, and protein-rich foods such as cooked chicken or egg.ir diet includes small insects, sugary liquids like nectar or syrup, fruits, jelly, and protein-rich foods such as cooked chicken or egg.

Patagonomyrmex angustus polygynous ant colony, with colony size usually under 400 workers, rarely exceeding that size in natural nests

Size: Queens: ~7-9 mm, Workers: ~4–6 mm