family Chalcididae vs family Chalcidae

family Chalcididae and family Chalcidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Chalcididae	Yes	No	No	No
family Chalcidae	Yes	No	No	No

As nouns, family Chalcididae and family Chalcidae are synonyms defined as:

family Chalcididae and family Chalcidae: an arthropod family including: chalcidflies

Other synonyms of family Chalcididae include Chalcidae, Chalcididae.

family Chalcididae (noun)	family Chalcidae (noun)
an arthropod family including: chalcidflies	an arthropod family including: chalcidflies