914 LIST OF HOMOPTEROUS INSECTS. 



6. PSYLLA VIRIDIS. 



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



1848,3,72,6. 

 Psylla viridis, Hartig, Germ, Ent. Zeit. iii. 374, 3. 



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

 e. ? 



d. ? Presented by F. Walker, Esq. 



e, g. Prussia. Presented by E. Doubleday, Esq. 



7. Psylla Mali. 



Psylla Mali, Foerster, PsylL Verh. Nat. Ver. Preuss. Rheinl. 1848, 



3, 72, 8. 

 Chermes Mali, Schmidberger, Kollar, Treatise on Injurious Insects, 



Translated, 278. 



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



8. Psylla Carpini. 



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

 1848, 3, 72, 9. 



Prussia. 



9. Psylla dubia. 



Psylla dubia, Foerster, PsylL Verh. Nat. Ver. Preuss. Rheinl. 1848, 

 3, 73, 10. 



Prussia. 



10. Psylla fraxinicola. 



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

 1848,3,73, 11. 



Prussia. * 



11. Psylla Hippophaes. 



Psylla Hippophaes, Von Heyden, MSS. Foerster, Psyll. Verh. Nat. 

 Ver. Preuss. Rheinl. 1848, 3. 



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



