oriental cockroach vs blackbeetle

oriental cockroach and blackbeetle both are nouns.

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

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

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

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

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