Originally posted by Thagomizer Sticks out like a sore thumb on its chosen resting place. I wonder if it blends in better in UV than in visible light?
As far as camouflage to avoid detection by potential prey, it might make no difference if it is brilliantly colored and contrasts with the background (to our eyes). Insect eyes a extremely sensitive to movement, but are not much good at shapes. So a bright blot of yellow against a dark background may never be seen as anything more than that, that is, their nervous system will not see it as danger, or better, such a yellow-against-dark image will not trigger an escape response. However, if the ambush bug were to move a trifle too quickly, the eyes of potential prey would detect it and instantly trigger its wings into flight.