no-see-um vs biting midge

no-see-um and biting midge both are nouns.

Word	Noun	Adjective	Verb	Adverb
no-see-um	Yes	No	No	No
biting midge	Yes	No	No	No

As nouns, no-see-um and biting midge are synonyms defined as:

no-see-um and biting midge: minute two-winged insect that sucks the blood of mammals and birds and other insects

Other synonyms of no-see-um include punkey, punkie, punky.

no-see-um (noun)	biting midge (noun)
minute two-winged insect that sucks the blood of mammals and birds and other insects	minute two-winged insect that sucks the blood of mammals and birds and other insects