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Driver ants. Driver ants, from the genus Dorylus, are found in the Old World, especially West Africa and the Congo Basin. Unlike the army ants of the New World, Old World army ants have a functional sting but rarely use it, preferring their razor-sharp, falcate mandibles for defense instead. Dorylus spp. colonies also reach larger sizes than ...
The ants are very aggressive and will bite if a mound is disturbed. In the Northeastern United States, Allegheny mound ants ( Formica exsectoides ) are credited with causing lesions typically in the form of a deep constriction about 10 cm long on the main stem of small individuals of a variety of species, both hardwoods and conifers , including ...
Camponotus ants do not have a metapleural gland [106] and Camponotus maculatus as well as C. floridanus workers have been found to amputate the affected legs of nestmates when the femur is injured. A femur injury carries a greater risk of infection unlike a tibia injury.
Myrmicinae is a subfamily of ants, with about 140 extant genera; [1] 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. [2]
Members of this group have enormous gasters and can regurgitate their stored food when needed. In this way, the colony has a cushion against food shortages. [21] Pharaoh ants have a sophisticated strategy for food preference. They implement two related behaviors. The first is known as satiation.
Myrmecocystus honeypot ants, showing the repletes or plerergates, their abdomens swollen to store honey, above ordinary workers. Honeypot ants, also called honey ants, are ants which have specialized workers (repletes, [1] plerergates, or rotunds) that consume large amounts of food to the point that their abdomens swell enormously.
They have a jugal anal lobe (a portion of the hindwing), a feature found in many primitive ants, and basal hamuli (hook-like projections that link the forewings and hindwings). Most male specimens collected have two tibial spurs (spines located on the distal end of the tibia); the first spur is a long calcar and the second spur is short and thick.
These ants are commonly called "crazy ants" because instead of following straight lines, they dash around erratically. They have a broad distribution, including much of the tropics and subtropics , and are also found in buildings in more temperate regions, making them one of the most widespread ant species in the world.