LIST OF HOMOPTEROUS INSECTS. 



13. SOHIZONEURA? LANATA. 



Aphis lanata, Zett. Ins. Lapp. i. 2, 311, 5. 

 Lapland. 



14. SCHIZONEDRA? PyRI. 



Eriosoma Pyri, Fitch, The Senate, No. 30, 68. 

 New York. 



15. SCHIZONEURA ? TESSELLATA. 



Ericsoma tessellata. Fitch, The Senate, No. 30, 68. 

 New York. 



16. SCHIZONEOllA? IMHRICATOR. 



Eriosoma imbricator, Fitch, The Senate, No. 30, 68. 

 New York. 



Genus 3. THELAXES. 



Thelaxes, fFestw. Intr. Ent. i. 118. 



Vacuna, Von Heyden, Kalt. Mon. Pflan. 177. Ralz. 



1. Thelaxes Betcl.*. 



Vaonna Betulae, Heyden, Kalt. Mon. Pflan. 177, 1, f. 19—21. 

 Aphis (Vacuna) Bet'uls, Ratz. Forst. Ins. iii. 223, 38. 

 Tremuiinax, Amyol, Ann. Soc. Ent. Fr. 2me Slrie, v. 483. 



Var. Green, with dark brown bands : head black. 

 a — c. England. (In Canada Balsam). Presented by F. Walker, 



Esq. 



2. Thelaxes dbvophila. 



Aphis dryophila, Schrank, Faun. Bnic. ii. 1, 113. 1210. 

 Vacuna dryophila, Heyden, Kalt. Man. Pflan. 178,2. 

 Aphis (Vacuna) dryophila, Ratz. Forst. Ins. iii. 223. 

 Vacuda, Amynt, Ann. Soc. Ent. Fr. 2me Serie, v. 483, 534. 

 Cinaria Quercus, Sir Oswald Mosley, Gard. Chron. i. 621. 



