Long-horned Borer Beetle: Cerambycidae, genus Callipogon (Belize). This beetle was impressive in terms of sheer size, and it sported an intimidating pair of mandibles. I think I can safely say it was the largest beetle I've ever seen in the wild - about 5 inches (13 centimeters) long, not including antennae. Truly a beast.
Weevil, family Curculionidae, from Belize. The elongated 'snout', characteristic of the group, is used for both feeding and for boring a cavity in plant material in which to lay their eggs.
Handsome Fungus Beetle (Endomychidae: Stenotarsus sp.), most likely not yet described. (Monteverde, Costa Rica)