caddis-fly vs trichopteran

caddis-fly and trichopteran both are nouns.

Word	Noun	Adjective	Verb	Adverb
caddis-fly	Yes	No	No	No
trichopteran	Yes	No	No	No

As nouns, trichopteran is a hypernym of caddis-fly; that is, trichopteran is a word with a broader meaning than caddis-fly:

caddis-fly: small moth-like insect having two pairs of hairy membranous wings and aquatic larvae
trichopteran: caddis fly

Other hypernyms of caddis-fly include trichopteron, trichopterous insect.

caddis-fly (noun)	trichopteran (noun)
small moth-like insect having two pairs of hairy membranous wings and aquatic larvae	caddis fly