Acamatus Emery, 1894 Woitkowskia Enzmann, 1952 Neivamyrmex is a genus of army ants in the subfamily Dorylinae.

[2] Neivamyrmex species can be found from the central United States to southern Argentina.

[3] Neivamyrmex do not build permanent nests; instead, colonies are nomadic, establishing temporary bivouacs every night before moving on to a new location.

[4] Most species are predominantly subterranean, but they will occasionally forage above ground at night or on cloudy days.

[7] Fertilization of queens may occur purely within the colony, with mating occurring between brothers and sisters, or unrelated males may fly in from foreign colonies to reproduce.