sciarid vs fungus gnat

sciarid and fungus gnat both are nouns.

Word	Noun	Adjective	Verb	Adverb
sciarid	Yes	No	No	No
fungus gnat	Yes	No	No	No

As nouns, sciarid and fungus gnat are synonyms defined as:

sciarid and fungus gnat: minute blackish gregarious flies destructive to mushrooms and seedlings

Other synonyms of sciarid include sciara.

sciarid (noun)	fungus gnat (noun)
minute blackish gregarious flies destructive to mushrooms and seedlings	mosquito-like insect whose larvae feed on fungi or decaying vegetation
	minute blackish gregarious flies destructive to mushrooms and seedlings