gall midge vs dipteran

gall midge and dipteran both are nouns.

Word	Noun	Adjective	Verb	Adverb
gall midge	Yes	No	No	No
dipteran	Yes	No	No	No

As nouns, dipteran is a hypernym of gall midge; that is, dipteran is a word with a broader meaning than gall midge:

gall midge: fragile mosquito-like flies that produce galls on plants
dipteran: insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing

Other hypernyms of gall midge include dipteron, dipterous insect, two-winged insects.

gall midge (noun)	dipteran (noun)
fragile mosquito-like flies that produce galls on plants	insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing