LIST OF HOMOPTEROUS INSECTS. 927 



15. Trioza nigricornis. 



Trioza nigricornis, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 

 1848,3,86, 16. 



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



16. Trioza pinicola. 



Trioza pinicola, Foerster, PsylL Verh. Nat. Ver. Preuss. Rheinl. 



1848,3,86, 15. 

 Psylla Pini ? Geoff. Ins. Par. i. 488, 6. 

 Chermes Pini ? Linn. Syst. Nat. 736, 25. Faun. Suec. Ed. i. 699. 



Gmel. Ed. Syst. Nat. i. 4, 2213, 19. Stew. El. Nat. Hist. ii. 



112. 

 Pityopsylla, Amyot, Ann. Soc. Ent. Fr. 2me Serie, v. 461, 513. 



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



17. Trioza? Laricis. 



Psylla Laricis, Macquart, Recueil Trav. Soc. Sci. Lille, 1819. 

 Cnapbalodes Laricis, Amyot et Serv. Hist. Nat. Hem. 595. 

 Cnaphalodes, Amyot, Ann. Soc. Ent. Fr. 2me Serie, v. 460, 512. 



France. 



18. Trioza femoralis. 



Trioza femoralis, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 



1848,3,86,17. 



Germany. 



19. Trioza actjtipennis. 



Chermes acutipennis, Zett. Faun. Lapp. i. 554, 5. Ins. Lapp. 



308, 5. 

 Trioza acutipennis, Foerster, Psyll. Verh. Nat. Ver. Preuss. Rheinl. 



1848, 3, 87, 18. 



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



