Myrmicinae is a subfamily of ants, with about 140 extant genera; their distribution is cosmopolitan. The pupae lack cocoons. Some species retain a functional sting. The petioles of Myrmicinae consist of two nodes. The nests are permanent and in soil, rotting wood, under stones, or in trees.
Megalomyrmex is a genus of ant in the subfamily Myrmicinae. The genus is known only from the Neotropics, where some of the species are specialized parasites or predators of Attini.
Oxyepoecus is a Neotropical genus of ant in the subfamily Myrmicinae. The genus is a member of the tribe Solenopsidini and currently includes 20 species.
Lachnomyrmex amazonicus is a species of ant in the subfamily Myrmicinae.
Lachnomyrmex fernandezi is a species of ant in the subfamily Myrmicinae.
Lachnomyrmex lattkei is a species of ant in the subfamily Myrmicinae.
Lachnomyrmex longinoi is a species of ant in the subfamily Myrmicinae found in Honduras, Nicaragua, Costa Rica.
Lachnomyrmex mackayi is a species of ant in the subfamily Myrmicinae.
Lachnomyrmex regularis is a species of ant in the subfamily Myrmicinae.
Trachymyrmex is a genus of fungus-growing ants in the subfamily Myrmicinae. The genus is mainly tropical in distribution, with most species being found in Central and South America.
Paramycetophylax is a genus of fungus-growing ants in the subfamily Myrmicinae. It contains the single species Paramycetophylax bruchi, known only from Argentina. Workers collect leaflets from Prosopis flexuosa that they bring back to the nest to act as substrate for the fungus.
Blepharidatta is a rare Neotropical genus of ants in the subfamily Myrmicinae. The genus, formed by predatory species whose small colonies nest in soil or leaf-litter, has up to seven species, but most of them are waiting for a formal taxonomic treatment or confirmation.
Lachnomyrmex is a Neotropical genus of ants in the subfamily Myrmicinae. The genus consists of 16 species restricted to the Neotropics, known from southern Mexico to northern Argentina. They are most often found in the leaf litter of wet forests, with nests located on the ground. Workers forage alone, apparently without recruiting nestmates or using pheromones. Within the tribe Stenammini, they seem to be most closely related to the genera Lordomyrma of Indo-Australia and Cyphoidris of Africa.
Tropidomyrmex is a Neotropical genus of ants in the subfamily Myrmicinae. The genus contains the single species Tropidomyrmex elianae, known from Brazil.
Melissotarsus is a rare African genus of ants in the subfamily Myrmicinae. They are known from the Afrotropics and Malagasy regions, where their nests are located in living wood, built by tunneling through the wood under the bark. They are rarely seen outside of their nests, which may contribute to their perceived rarity. However, they are considered pest insects because of damage they can cause to trees, including economically important ones such as mangos and trees in the family Burseraceae, including Aucoumea klaineana, Dacryodes buettneri, and Dacryodes edulis.
Stegomyrmex is a Neotropical genus of ants in the subfamily Myrmicinae. Strictly Neotropical in its distribution, the genus is known from Costa Rica to northern Argentina. It was once considered rare, but more recent sampling has revealed that the genus is relatively common in the leaf litter.
Megalomyrmex wallacei is a Neotropical species of ants in the subfamily Myrmicinae. Megalomyrmex wallacei can be found in Brazil, Guyana, Colombia, Costa Rica. This species occurs in mature wet forest, usually low-elevation rainforest. Brandão (2003) reports the species nesting under leaves on the forest floor, in colonies of up to 300 workers.
Cyatta is a genus of ant in the subfamily Myrmicinae containing the single species Cyatta abscondita. It is considered the most recent ancestor of all fungus-farming ants and a living fossil.
Trichomyrmex emeryi is a species of ant in the subfamily Myrmicinae.
Megalomyrmex acauna is a Neotropical species of ants in the subfamily Myrmicinae. Known from Brasil and Peru. It is similar to M. leoninus-group. Its head width (HW) is 1.45—1.63 mm and head length (HL) is 1.68—1.75 mm. Its scapus length (SL) is 2.13—2.28 mm.
