[1] Eucharitid wasps are members of the superfamily Chalcidoidea and consist of four subfamilies: Akapalinae, Eucharitinae, Gollumiellinae, and Oraseminae.

[2] Most of the 42 genera and >400 species of Eucharitidae are members of the subfamilies Oraseminae and Eucharitinae, and are found in tropical regions of the world.

However, the amount of parasitism that occurs depends primarily on the size of the ant colony and the number of host pupae in them, and not on the season.

[4] Female eucharitids oviposit rows of eggs into plant tissue, such as leaves and stems, away from ant colonies.

By mimicking the odor of their host, eucharitid wasps are able to keep themselves safe until the scent wears off, at which point they leave the ant colony and begin mating.

In most cases, the males swarm one to two feet above the nest, and as soon as the females emerge, mating occurs.

However, the males of certain species, such as Kapala terminalis, calmly wait on foliage surrounding the nest until the females emerge.

[3] They are distributed worldwide in tropical regions, such as Costa Rica, Ecuador,[5] Brazil, and Argentina.

[7] An orasemine female punctures the plant tissue on which she will oviposit, and places an egg inside of each incision.

[7] Because orasemine larvae, pupae, and adults are easily distinguished from their host,[13] the wasps disguise themselves by passively obtaining the odor of the fire ants.

After a few days in the nest, the odor wears off and the ants begin to notice the wasps are not a part of their brood.

They stand erect on the plant on which they hatched, and without any distinguishable preparation, jump about 10 mm from the leaf onto a foraging ant.

[14] Gollumiellinae are unique in that they hook their eggs onto the plants and connect a ropey secretion to them, which stand erect.

Eucharitids are candidates for biological control because each subfamily targets a specific ant genus.