914 LIST OF HOMOPTEROUS INSECTS. 



6. PSYLLA YIRIDIS. 



Psylla crataegicola, Foerstei\ Psyll. Verh. Nat. Ver. Preuss. Rheinl. 



1848,3, 72,6. 

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



a, h. 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—f. 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. PSTLLA FRAXINICOLA. 



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

 1848,3,73, 11. 



Prussia. 



11. Psylla Hippo phaes. 



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

 Ver. Preuss. Rheinl. 1848, 3. 



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



