from rik littlefield when responding to these images on photomacrography.com
"This is a beetle, one of the Milkweed Longhorns, likely Tetraopes tetrophthalmus though I don't have enough references to be sure from a head shot.
The larvae of these beetles bore in the stem and roots of milkweed plants.
The name comes from "four eyes", which is what you'll see if you count them! The larger group, family Cerambycidae, generally has antennae that arise so close to the eyes that the eyes wrap partially around them in a "C" shape. In Tetraopes this arrangement has become so extreme that the center of the "C" is completely separated, leaving the appearance of two eyes on each side. It's an interesting question how the information from those two half-eyes gets integrated, but I don't know anything about that. "
