Amphotis marginata soliciting food from a worker of F. pratensis.

2017-08-07T17:29:12Z (GMT) by Bert Hölldobler Christina L. Kwapich

(Above) The beetle thrusts its head toward the ant’s head. The ant briefly licks the beetle’s mouthparts. (Below) The beetle stimulates the ant’s labium. The ant opens the mandibles, folds the antennae backwards and regurgitates a food droplet.