Treehopper - Publilia concava

I've never seen this pattern of Publilia concava before! This lady was guarding her eggs. Females are more likely to oviposit on plants in which ants are present because they have a mutualistic relationship: the treehoppers produce honeydew, which the ants eat. In return, the ants protect the treehoppers.

Interestingly, male hoppers have mating calls, which are inaudible to humans unless recorded through vibrations. Check it out here: http://treehoppers.insectmuseum.org/site/treehoppers/sounds/Publilia_Cocroft.wav