Ant nest beetle secretions on their antennae and body allow them to interact with ant workers. It is believed that the beetles use an acoustic mechanism to successfully imitate the sounds of an ant queen thus permitting them access to the nest without alarming the ants. The defensive bombardier behaviour is never used against ants. Males of some species are attracted to lights during some parts of the season and are thought to disperse from one ant nest to another. Males are thought to be short-lived. These beetles feed on ant eggs, larvae and adults by piercing their mandibles into the abdomen or
Green-head ant seeds they feed on approximately away from their nests in both unburned and burned habitats. In some cases, the seeds of "Adriana quadripartita" are dispersed much farther; the green-head ant accounts for 93% of all ants that collect these seeds and can disperse them as far as . One study shows that the green-head ant, along with "Aphaenogaster longiceps", removed the highest number of seeds and discarded them on top of their nest, with a few remaining several centimetres under the nest. Most seeds dispersed by the green-head ant and "A.longiceps" are eventually eaten by "Pheidole" ants. Since the seeds