Blatta orientalis vs blackbeetle

Blatta orientalis and blackbeetle both are nouns.

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

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

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

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

Blatta orientalis (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