Myrmicines

Myrmicines are a subfamily of ants belonging to the family Formicidae. This subfamily is one of the largest and most diverse within the ants, encompassing a wide range of species with varied ecological roles and behaviors. Myrmicines are characterized by a distinct morphological feature: a pair of nodes or petiole segments that connect the mesosoma (the middle section of the body) to the gaster (the posterior section). These nodes are typically a propodeal-metapical suture and a postpetiole.

The distribution of Myrmicines is cosmopolitan, meaning they are found on every continent except Antarctica. They inhabit a broad spectrum of environments, from tropical rainforests to arid deserts and temperate woodlands. Within these habitats, they occupy various ecological niches, acting as predators, scavengers, seed harvesters, and some even engage in fungus farming, similar to leafcutter ants of the tribe Attini, though this is not exclusive to Myrmicines.

Social structure in Myrmicines, like other ants, is eusocial, with colonies typically consisting of a queen, workers, and reproductive males and females. The size of colonies can vary significantly, from small, localized nests to massive supercolonies. Their diets are also diverse, reflecting their varied lifestyles. Many species are opportunistic omnivores, feeding on insects, other invertebrates, honeydew, nectar, and seeds. Some specialized Myrmicine species have developed unique feeding strategies, such as predatory habits targeting specific prey or the aforementioned fungus cultivation. The evolutionary success of Myrmicines is attributed to their adaptability, diverse foraging strategies, and complex social organization.