LIST OF HOMOPTEROUS INSECTS. 915 



12. PSYLLA 



Psylla viridula, Foerster, Psyll. Verh. Nat. Ver. Preuss, Rheinl. 1848, 

 3, 74, 13. 



a. England. Presented by F. Walker, Esq. 



13. Psylla peregeina. 



Psylla peregrina, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 

 1848, 3, 74, 14. 



a, b. Prussia. Presented by F. Walker, Esq. 



14. Psylla insignis. 



Psylla insignis, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 

 1848, 3, 74, 15. 



Prussia. 



15. Psylla ambigua, 



Psylla arabigua, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 

 1848, 3, 74, 16. 



Prussia. 



16. Psylla melanoneura. 



Psylla melanoneura, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 

 1848, 3, 75, 17. 



Prussia. 



17. Psylla spaetiophila. 



Psylla spartiophila, Foerster^ Psyll. Verh. Nat. Ver. Preuss. Rheinl. 



1848,3,75, 18. 



a, b. Prussia. Presented by F. Walker, Esq. 



18. Psylla CEAXiEGL 



Cherraes Crataegi, Scopoli, Ent. Cam. 139, 412. Chnel. Ed. Syst. 



Nat. \. 4, 2214, 24. Schrank, Faun. Boic. ii. 1, 142, 1255. 



Stew. El. Nat. Hist. ii. 112. 

 Psylla Crataegi, Foerster^ Psyll. Verh. Nat. Ver. Preuss. Rheinl 



1848, 3, 75, 19. 



a — d. England. Presented by F. Walker, Esq. 



