blackbeetle vs Blatta orientalis

blackbeetle and Blatta orientalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackbeetle	Yes	No	No	No
Blatta orientalis	Yes	No	No	No

As nouns, blackbeetle and Blatta orientalis are synonyms defined as:

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

Other synonyms of blackbeetle include Asiatic cockroach, oriental cockroach, oriental roach.

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