Haematobia irritans vs horn fly

Haematobia irritans and horn fly both are nouns.

Word	Noun	Adjective	Verb	Adverb
Haematobia irritans	Yes	No	No	No
horn fly	Yes	No	No	No

As nouns, Haematobia irritans and horn fly are synonyms defined as:

Haematobia irritans and horn fly: small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn

Haematobia irritans (noun)	horn fly (noun)
small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn	small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn