Argentine ant worker, Linepithema humile, tending the nymphs of the Asian citrus psyllid Diaphorina citri.

Ants tend psyllid nymphs, protecting them from natural enemies in order to harvest their honeydew.; Riverside, Riverside County Credit: Beth Grafton-Cardwell, Dept. of Entomology, UC Riverside
Argentine ant worker, Linepithema humile, tending the nymphs of the Asian citrus psyllid Diaphorina citri. Credit: Beth Grafton-Cardwell, Dept. of Entomology, UC Riverside