All ants have the main divisions of the body (head, thorax, abdomen) distinctly separated by very narrow waists and have a sharp elbow joint in their antennae. They are highly organised social insects. It is the foraging worker ants that invade buildings in search of food. These are from 3 to 5mm in length and are attracted to sweet foodstuffs which they take back to the nest to feed to the larvae and queen.
The so-called ants eggs sold for aquaria fish are actually the pupae. Flying ants are the reproductive males and females. These mating ants are winged and have a nuptial swarming flight during only a few days in July or August. Mating takes place in the air and the female then seeks out a nest site where she stays for the winter, laying eggs the following spring in order to start up a new colon