[2] The genus is known from central and northern South America, where they are primarily found in mid-elevation moist forests.

[3] Workers are slender, small in size (2.1–4.9 mm), and black to orange in color.

Queens are dichthadiiform (wingless and with enlarged gasters) and "morphologically simplified" relative to workers.

[3] Species have an army-ant life style, including group predation and nomadism.

However, belonging to the tribe Ponerini, they are evidently ponerines and the army-ant like characters are deemed to have evolved through convergent evolution.