ant lion vs antlion fly

ant lion and antlion fly both are nouns.

Word	Noun	Adjective	Verb	Adverb
ant lion	Yes	No	No	No
antlion fly	Yes	No	No	No

As nouns, ant lion and antlion fly are synonyms defined as:

ant lion and antlion fly: winged insect resembling a dragonfly; the larvae (doodlebugs) dig conical pits where they wait to catch e.g. ants

Other synonyms of ant lion include antlion.

ant lion (noun)	antlion fly (noun)
winged insect resembling a dragonfly; the larvae (doodlebugs) dig conical pits where they wait to catch e.g. ants	winged insect resembling a dragonfly; the larvae (doodlebugs) dig conical pits where they wait to catch e.g. ants
the larva of any of several insects