Papyrius nitidus workers tend hemipteran nymphs on a tree in northern Australia. Iron Range National Park, Queensland, Australia
A Formica francoeuri field ant worker tending to a Lycaena xanthoides larva. The larva produces secretions attractive to ants, and in turn the ants protect the larva from predators and parasites. San Diego Co., California, USA
A Formica francoeuri field ant worker tending to the larva of a Great Copper butterfly (Lycaena xanthoides). The caterpillar produces secretions attractive to ants, and in turn the ants protect the caterpillar from predators and parasites. San Diego Co., California, USA
