louse fly vs dipteron

louse fly and dipteron both are nouns.

Word	Noun	Adjective	Verb	Adverb
louse fly	Yes	No	No	No
dipteron	Yes	No	No	No

As nouns, dipteron is a hypernym of louse fly; that is, dipteron is a word with a broader meaning than louse fly:

louse fly: bloodsucking dipterous fly parasitic on birds and mammals
dipteron: 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 louse fly include dipteran, dipterous insect, two-winged insects.

louse fly (noun)	dipteron (noun)
bloodsucking dipterous fly parasitic on birds and mammals	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