 Hence, the parasite is not able to sustain a colony of its own, but uses host resources instead.Similarly, larvae of the butterfly genus "Maculinea" (a junior synonym of "Phengaris", family Lycaenidae) and of the southern armyworm, live inside "Myrmica" nests where they are either directly fed by ants or prey upon ant brood.This parasitism is employed primarily by specific species such as "Phengaris arion" forming predatory relationships.