Wiktionary
true bug
n. Any of various insects of the order ''Hemiptera'' and in particular of the suborder ''Heteroptera'', that are wingless or have two pairs of wings, and have mouthparts adapted for piercing and sucking.
WordNet
true bug
n. any of various insects of the order Hemiptera and especially of the suborder Heteroptera
Usage examples of "true bug".
They were true bug-eyed monsters, and they were out to despoil the planet and leave it deprived of its resources, especially its magic.