A mayfly (order Ephemeroptera) with large red eyes waits motionlessly on a leaf.

A couple of big ruby red eyes thrown in there, too. Mayflies are one of several insects that do not develop feeding parts as adults and only have one purpose, to mate. Given that such insects usually only have a short period of time — in many cases only a day or so — to accomplish their goal, surviving only on the stored resources of their immature stages, it’s a wonder so many can be spotted at rest; of course, females will often “call” the male with pheromones and wait for his arrival. So, strike that, maybe it’s not a wonder.