LIST OF HOMOPTEROUS INSECTS. 



24. PSYLLA PYRICOLA. 



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



;), 77, 26. 

 Germany. 



25. PSYLL.V APIOPHILA. 



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

 1848, 3, 78, 26. 



a. England. Presented by J. C. Dale, Esq. 



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



26. Psylla ptrisdoa. 



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



1848, 3, 78, 27. 

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



27. Psylla Salicis. 



Chermes Salicis, Linn Si/st. Nat. ii. 739, 14. Faun. Suec. 1012. 



Fabr. Sp. Im. ii. 392, 14. Mant. Ins. ii. 318, 14. Ent. Syst. 



iv. 223, 14. Si/st. Rhyn. 305, 14. Gmel. Ed. Syst. Nat. i. 4, 



2213, 14. Sehrank, Faun. Bole. ii. 1, 140, 1247. Stew. El. 



Nat. Hist. ii. 112. Turt. Syst. Nat. ii. 711. 

 Psylla Saliceti, Foerster, Psyll. Verh. Nat. Ver. Pretiss. Rheinl. 



1848,3,79,28. 

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



c. Prussia. Presented by the Entomological Club. 

 d. ? 



28. Psylla fkrbuqinea. 



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

 1848,3,79,29. 



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



b. Prussia. Presented by E. Doubleday, Esq. 

 e. Prussia. Presented by F. Walker, Esq. 



