 M. hirsuta and M. inquilina are the only known species in this genus that are inquilines and live in other Myrmecia colonies . An M. inquilina queen has been found in an M. vindex colony . Myrmecia is a larval attendant to the butterfly Theclinesthes serpentata ( saltbush blue ) , while some species , particularly M. nigrocincta , enslave other ant species , notably those in the genus Leptomyrmex . M. nigriceps ants are able to enter another colony of the same species without being attacked , as they may be unable to recognize alien conspecifics , nor do they try to distinguish nestmates from ants of another colony . Formicoxenus provancheri and M. brevinoda share a form of symbiotic relationship known as xenobiosis , where one species of ant will live with another and raise their young separately , with M. brevinoda being the host . Solenopsis may sometimes nest in Myrmecia colonies , as a single colony was found to have three or four Solenopsis nests inside . Lagria beetles and rove beetles in the genus Heterothops dwell inside colonies and skinks and frogs have also been found living unmolested within Myrmecia nests . Metacrinia nichollsi , for example , has been reported living inside M. regularis colonies . 
