Malacosoma americana vs moth

Malacosoma americana and moth both are nouns.

Word	Noun	Adjective	Verb	Adverb
Malacosoma americana	Yes	No	No	No
moth	Yes	No	No	No

As nouns, moth is a hypernym of Malacosoma americana; that is, moth is a word with a broader meaning than Malacosoma americana:

Malacosoma americana: moth whose larvae are tent caterpillars
moth: typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae

Malacosoma americana (noun)	moth (noun)
moth whose larvae are tent caterpillars	typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae