Larvae of aphid fly (Chamaemyiidae) feeding on aphids, Aphis ceanothi, tended by Argentine ants, Iridomyrmex humilis.

Aphid (2x) on branch with Chamaemyiidae larva and Argentine ants, Iridomyrmex humilis; UC Davis, Arboretum Credit: Jack Kelly Clark
Larvae of aphid fly (Chamaemyiidae) feeding on aphids, Aphis ceanothi, tended by Argentine ants, Iridomyrmex humilis. Credit: Jack Kelly Clark