Monarch Butterfly Caterpillar (Daneus plexippus)

This monarch butterfly caterpillar is pretty well isolated against its background. It was photographed at f8 and I tried to parallel the sensor plane of the camera with the plane of the caterpillar's body. The choice of d-o-f is always a compromise in macrophotography--too much and backgrounds and foregrounds become distracting. Too little, and parts of the subject that you would like to be sharp are not.

Neither the monarch butterfly nor its caterpillar are subtle in their coloration. In fact, they advertise their identity. They are toxic and/or bad-tasting and are avoided by most birds. Like many caterpillars, the monarch has a set of "horns" both fore and aft, to confuse predators so they will not know which end is which. This gives the caterpillar better odds of surviving an attack.