'Psylla' definitions:
Definition of 'psylla'
From: WordNet
noun
Small active cicada-like insect with hind legs adapted for leaping; feeds on plant juices [syn: jumping plant louse, psylla, psyllid]
Definition of 'Psylla'
From: GCIDE
- Psylla \Psyl"la\, n.; pl. Psyll[ae]. [NL., from Gr. ? a flea.] (Zool.) Any leaping plant louse of the genus Psylla, or family Psyllid[ae]. [1913 Webster]