A few days ago I used the term “true bug” when referring to a specific order of insects. This engendered some confusion, as a few people didn’t know the difference between “bugs” in common parlance and “true bugs” in scientific parlance.
You will want to know the difference, and Alex Wild explains at Myrmecos:
An issue that invariably surfaces when entomologists interact with non-entomologists is the “bug problem“.
I don’t mean pest infestation troubles. Rather, I mean that entomologists use a different definition of the word “bug” than the general English-speaking populace, with confusing results.
To most people, a “bug” is any small crawly animal. Like a spider, or a centipede, or maybe a chihuahua. To an entomologist, a “bug” is . . .
Go to his website to see.