Ant nest beetle Ant nest beetle Ant nest beetles (subfamily Paussinae) or paussines, some members of which are known also as flanged bombardier beetles, are a large subfamily within the ground beetles (Carabidae). The tribes Metriini, Ozaenini, Paussini and Protopaussini are included in the subfamily. Rarely seen, most Paussinae are obligate or facultative myrmecophiles, living within the nests of ants, predatory on ant larvae and workers. Many have elaborate antennal structures and body parts flattened. Paussines are moderate sized (6–20 mm), characterised by glandular hairs that produce secretions attractive to ants and by the odd antennal structures of many species. Their pygidial glands
Ant mimicry call of ants so they can integrate themselves into the nest. In "A. dentatis" the tubercles release the mimicking pheromone which elicits "A. caprensis" to care for the mimics as they would their own brood. In these relationships worker ants give the same preference to the Lycaenid's as they do to their own brood, demonstrating that chemical signals produced by the mimic are indistinguishable to the ant. This process is also used by larvae of the European Lycaenid species "Phengaris rebeli" which live in the nests of "Myrmica" ants and feed on their ant brood. Wasmannian mimicry occurs when two