darkling beetle vs tenebrionid

darkling beetle and tenebrionid both are nouns.

Word	Noun	Adjective	Verb	Adverb
darkling beetle	Yes	No	No	No
tenebrionid	Yes	No	No	No

As nouns, darkling beetle and tenebrionid are synonyms defined as:

darkling beetle and tenebrionid: sluggish hard-bodied black terrestrial weevil whose larvae feed on e.g. decaying plant material or grain

Other synonyms of darkling beetle include darkling groung beetle.

darkling beetle (noun)	tenebrionid (noun)
sluggish hard-bodied black terrestrial weevil whose larvae feed on e.g. decaying plant material or grain	sluggish hard-bodied black terrestrial weevil whose larvae feed on e.g. decaying plant material or grain