psyllid vs jumping plant louse

psyllid and jumping plant louse both are nouns.

Word	Noun	Adjective	Verb	Adverb
psyllid	Yes	No	No	No
jumping plant louse	Yes	No	No	No

As nouns, psyllid and jumping plant louse are synonyms defined as:

psyllid and jumping plant louse: small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices

Other synonyms of psyllid include psylla.

psyllid (noun)	jumping plant louse (noun)
small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices	small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices