blackbeetle vs oriental roach

blackbeetle and oriental roach both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackbeetle	Yes	No	No	No
oriental roach	Yes	No	No	No

As nouns, blackbeetle and oriental roach are synonyms defined as:

blackbeetle and oriental roach: dark brown cockroach originally from orient now nearly cosmopolitan in distribution

Other synonyms of blackbeetle include Asiatic cockroach, Blatta orientalis, oriental cockroach.

blackbeetle (noun)	oriental roach (noun)
dark brown cockroach originally from orient now nearly cosmopolitan in distribution	dark brown cockroach originally from orient now nearly cosmopolitan in distribution