haltere vs dipteron

haltere and dipteron both are nouns.

Word	Noun	Adjective	Verb	Adverb
haltere	Yes	No	No	No
dipteron	Yes	No	No	No

haltere (noun)	dipteron (noun)
either of the rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight	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