lasiocampid vs eggar

lasiocampid and eggar both are nouns.

Word	Noun	Adjective	Verb	Adverb
lasiocampid	Yes	No	No	No
eggar	Yes	No	No	No

As nouns, eggar is a hyponym of lasiocampid; that is, eggar is a word with a more specific, narrower meaning than lasiocampid:

lasiocampid: medium-sized stout-bodied neutral-colored moths with comb-like antennae
eggar: moth having nonfunctional mouthparts as adults; larvae feed on tree foliage and spin egg-shaped cocoons

Other hyponyms of lasiocampid include egger, Malacosoma disstria, tent-caterpillar moth, lappet, lappet moth, webworm moth.

lasiocampid (noun)	eggar (noun)
medium-sized stout-bodied neutral-colored moths with comb-like antennae	moth having nonfunctional mouthparts as adults; larvae feed on tree foliage and spin egg-shaped cocoons