Pineus pinifoliae vs adelgid

Pineus pinifoliae and adelgid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pineus pinifoliae	Yes	No	No	No
adelgid	Yes	No	No	No

As nouns, adelgid is a hypernym of Pineus pinifoliae; that is, adelgid is a word with a broader meaning than Pineus pinifoliae:

Pineus pinifoliae: a variety of adelgid which feeds on red, black, Engelmann, blue, and white spruce, or alternatively on white and western white pines (Pineus pinifoliae)
adelgid: any of various insects that feed and form galls on conifers

Pineus pinifoliae (noun)	adelgid (noun)
a variety of adelgid which feeds on red, black, Engelmann, blue, and white spruce, or alternatively on white and western white pines (Pineus pinifoliae)	any of various insects that feed and form galls on conifers