Don’t eat me, I’m covered in vomit

Grasshoppers defend themselves from green anoles by vomiting

source: New Scientist April 21 2001 p23

A researcher from Northern Plains Agricultural Research Laboratory, Montana, Greg Sword, has discovered that grasshoppers consume wafer-ash leaves, then vomit on themselves, as a way of defending themselves against green anole lizards. Insects covered in this vomit are spat out by the anoles. Some insects produce their own toxins as a defence, but these grasshoppers’ defence is dependent on the type of plant that they have consumed.