scarabaeid beetle vs scarabaeid

scarabaeid beetle and scarabaeid both are nouns.

Word	Noun	Adjective	Verb	Adverb
scarabaeid beetle	Yes	No	No	No
scarabaeid	Yes	No	No	No

As nouns, scarabaeid beetle and scarabaeid are synonyms defined as:

scarabaeid beetle and scarabaeid: any of numerous species of stout-bodied beetles having heads with horny spikes

Other synonyms of scarabaeid beetle include scarabaean.

scarabaeid beetle (noun)	scarabaeid (noun)
any of numerous species of stout-bodied beetles having heads with horny spikes	any of numerous species of stout-bodied beetles having heads with horny spikes