Source : WordNet®

ant lion
     n 1: the larva of an ant lion or of any of several other insects
          [syn: {doodlebug}, {antlion}]
     2: winged insect resembling a dragonfly; the larvae
        (doodlebugs) dig conical pits where they wait to catch
        e.g. ants [syn: {antlion}, {antlion fly}]