pyricola (Foerster, 1848)

Type locality: Europe.

Additional distribution: West Palaearctic to E. Siberia, S. Korea and Japan; introduced in Argentina, Canada, USA.

Host plant: Pyrus communis; CSCA records for California include nymphs and adults collected from Pyrus calleryana .

Remarks: This species and several closely related taxa are responsible for considerable economic losses in fruit production via the vectoring of phytoplasmas.

Parasitoids: Several encyrtid primary parasitoids and hyperparasitoids have been recorded from related psyllids ( C. pyri and C. pyrisuga) feeding on pear in Europe (Sullivan & Volkl 1999) (including, Prionomitus, Psyllaephagus, Sectiliclava, Syrphophagus, Trechnites (all as primary), and Pachyneuron (as secondary)).