sphecoid vs mason wasp

sphecoid and mason wasp both are nouns.

Word	Noun	Adjective	Verb	Adverb
sphecoid	Yes	No	No	No
mason wasp	Yes	No	No	No

As nouns, mason wasp is a hyponym of sphecoid; that is, mason wasp is a word with a more specific, narrower meaning than sphecoid:

sphecoid: any of various solitary wasps
mason wasp: solitary wasp that constructs nests of hardened mud or clay for the young

Other hyponyms of sphecoid include digger wasp, mud dauber.

sphecoid (noun)	mason wasp (noun)
any of various solitary wasps	any of various solitary wasps that construct nests of hardened mud for their young
	solitary wasp that constructs nests of hardened mud or clay for the young