psylla vs jumping plant louse

psylla and jumping plant louse both are nouns.

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

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

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

Other synonyms of psylla include psyllid.

psylla (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