(Cacopsylla melanoneura)
Cacopsylla melanoneura is an insect of the Psyllidae family. It mainly feeds on Hawthorn. The insect will also feed on apple trees and is considered the main vector of the phytoplasma disease "Ca. Phytoplasma mali" (Apple Proliferation) in northwestern Italy. Cacopsylla is a genus of bugs in the Psyllidae family, the jumping plant lice. The genus includes most of the psylla harmful to fruit trees.