 Because of the regularity and intensity of "E. burchelli" and "E. hamatum" swarms, many insect and bird species have evolved complex relationships with these ants.There are conopid flies (the entire genus "Stylogaster") that are obligate associates of army ant raids, and females lay their eggs on insects (mostly crickets and roaches) flushed into the open by the ants, and there are also some tachinid flies that are somewhat similar in behavior.There are ant-mimicking staphylinid beetles, shaped like the ants they follow, that run with the swarm, some of them preying on stragglers or other insects injured or flushed by army-ant activity, though most of these are inquilines in the ant nest; these and other insects sometimes spend their entire lives hidden in "Eciton" colonies, often mimicking the ants or their larvae.