scarab vs dung beetle

scarab and dung beetle both are nouns.

Word	Noun	Adjective	Verb	Adverb
scarab	Yes	No	No	No
dung beetle	Yes	No	No	No

As nouns, dung beetle is a hypernym of scarab; that is, dung beetle is a word with a broader meaning than scarab:

scarab: scarabaeid beetle considered divine by ancient Egyptians
dung beetle: any of numerous beetles that roll balls of dung on which they feed and in which they lay eggs

scarab (noun)	dung beetle (noun)
scarabaeid beetle considered divine by ancient Egyptians	any of numerous beetles that roll balls of dung on which they feed and in which they lay eggs