An Adranes ant beetle walks through the brood nest of its host, Lasius pallitarsis. These odd little beetles live in ant nests feeding on the developing brood. Blodgett Forest, California, USA
Neivamyrmex army ants are specialist predators of the brood of other ant species. Here, N. californicus raid the brood nest of the pavement ant Tetramorium immigrans. California, USA
Mimopria (Diapriidae) wasps are army ant mimics that run in the ants' columns. Morretes, Paraná, Brazil
