ALIEN VERSUS PREDATORS
The treehopper is the cyborg of the insect world, with bizarre projections and protuberances sprouting from its thorax. The precise function of these extreme enhancements is rather mysterious. They may play a part in physical protection or mate attraction. Or they could serve as resonators for the amplification of acoustic signals. In the case of the tropical American species Alchisme grossa, though, camouflage is at least part of the story. And any predator that sees through the thorn-like disguise still has to contend with an arsenal of toxic chemicals harnessed from the sap that the bugs suck from wild potato plants.