plecopteran vs stone fly

plecopteran and stone fly both are nouns.

Word	Noun	Adjective	Verb	Adverb
plecopteran	Yes	No	No	No
stone fly	Yes	No	No	No

As nouns, plecopteran and stone fly are synonyms defined as:

plecopteran and stone fly: primitive winged insect with a flattened body; used as bait by fishermen; aquatic gilled larvae are carnivorous and live beneath stones

Other synonyms of plecopteran include stonefly.

plecopteran (noun)	stone fly (noun)
primitive winged insect with a flattened body; used as bait by fishermen; aquatic gilled larvae are carnivorous and live beneath stones	primitive winged insect with a flattened body; used as bait by fishermen; aquatic gilled larvae are carnivorous and live beneath stones