family Pyralidae vs family Pyralididae

family Pyralidae and family Pyralididae both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Pyralidae	Yes	No	No	No
family Pyralididae	Yes	No	No	No

As nouns, family Pyralidae and family Pyralididae are synonyms defined as:

family Pyralidae and family Pyralididae: bee moths; corn borers; flour moths

Other synonyms of family Pyralidae include Pyralidae, Pyralididae.

family Pyralidae (noun)	family Pyralididae (noun)
bee moths; corn borers; flour moths	bee moths; corn borers; flour moths