, which are a kind of  grasshopper . Cicadas are related to  leafhoppers  and  spittlebugs . Firefly: Lampyridae  is a  family  of  insects  in the  beetle   order  Coleoptera. They are winged beetles, and commonly called  fireflies  or  lightning bugs  for their conspicuous crepuscular  use of  bioluminescence  to attract mates or