True bug adults are identified by the X-shaped pattern
on their wings and by their piercing sucking mouthpart. The X-shaped
pattern is due to the fore wings in which the anterior half is thickened
and leathery and the posterior half is membranous. This is called the
hemelytron or half-wing. Some members of this order (especially backswimmers
and giantwater bugs) can give a nasty bite, so care should be taken
when handling them. Most hemipterans, with the exception of the water
boatmen, are voracious predators, and they should be kept in separate
containers or they will eat the other specimens.