lacewing fly vs lacewing

lacewing fly and lacewing both are nouns.

Word	Noun	Adjective	Verb	Adverb
lacewing fly	Yes	No	No	No
lacewing	Yes	No	No	No

As nouns, lacewing fly and lacewing are synonyms defined as:

lacewing fly and lacewing: any of two families of insects with gauzy wings (Chrysopidae and Hemerobiidae); larvae feed on insect pests such as aphids

lacewing fly (noun)	lacewing (noun)
any of two families of insects with gauzy wings (Chrysopidae and Hemerobiidae); larvae feed on insect pests such as aphids	any of two families of insects with gauzy wings (Chrysopidae and Hemerobiidae); larvae feed on insect pests such as aphids