No. 31. | [NSECTS OF CONNECTICUT: HEMIPTERA. 6l 



sonchi Linnaeus. Aphis sonchi. Jour. Econ. Biol., viii, 64. 

 tanaceti Linnaeus. Aphis tanaceti. Ins. 111., viii, 68. Jour. 



Econ. Ent., 4, 382. 



Eriosoma Leach, 

 americana Riley. Schizoneura Hartig. Me! Agr. Expt. Sta., 



Bull. 241 ; Bull. 256, 340 (Key). Jour. Agr. Research, 6, 359. 

 lanigera Hausman. Woolly apple aphid. Bur. Ent., U. S. 



Dept. Agr., Rept. No. 101 ; Me. Agr. Expt. Sta., Bull. 256. 

 lanuginosa Hartig. Me. Agr. Expt. Sta., Bull. 256, 340 (Key), 

 rileyi Thomas. Me. Agr. Expt. Sta., Bull. 256, 340 (Key). 

 ulmi Linnaeus. Jour. Agr. Research, 6, 359; Me. Agr. Expt. 



Sta., Bull. 256, 340 (Key). 



Tetraneura Hartig. 

 graminis Monell. colophoidca Howard, uhnicola Gillette. 



Asiphum Koch. 

 pseudobyrsa Walsh. Ent. News, 25, 269. 



Prociphilus Koch. 

 approximatus Patch. Jour. Econ. Ent., 10, 418. 

 corrugatans? Sirrene. Jour. Agr. Research, 5, 11 17. 

 imbricator Fitch. Woolly beech aphid. 



tessellata Fitch. Schizoneura acerifolii. "Alder blight." Jour. 

 Econ. Ent., ii, 35. 



Neoprociphilus Patch. 

 aceris Monell. Jour. Agr. Research, 5, 11 17. 



Thecabius Koch. 

 populi-condupliformis Cowen. patchii Gillette. Hemip. Col., 



"5- 



Pemphigus Hartig. 



populicaulis Fitch. Me. Agr. Expt. Sta., Bull. 213, jj. 



Hormaphis Osten Sacken. 

 hamamelidis Fitch. Aphid. Minn., 24; Bur. Ent., Tech. 

 Series, No. 9, 9. 



Hamamelistes Shinier, 

 spinosus Shimer. papyracecc. Aphid. Minn., 19; Bur. Ent., 

 Tech. Series, No. 9, 25. 



