P. populicaulis, Fitch. 

 P. populiglobuli, Fitch. 

 P. populivenee, Fitch. 

 P. rhois, Fitch. 



CATALOGUE OF INSECTS. 451 



Sub-Family PEMPHIGIN-flE. 



PEMPHIGUS, Hart. 



Sub-Family CHERMESINJE. 



CHERMES, Linn. 

 C. laricifoliae, Fitch. 



C. pinifoliae, Fitch. 



Sub-Family PHYLLOXERINJE 



PHYLLOXERA, Ponsc. 

 P. caryae-caulis, Fitch. 



P. caryae-foliae, Fitch. 

 P. earyee-vense, Fitch. 

 P. vastatrix, Planch. 



Family ALEURODIDJE. 



ALEURODES, Am. et Serv. 

 A. abutilonea, Hald. 



A. brassicse, Walk. 

 A. corni, Hald. 



Family COCCID^. 



Sub-Family COCCINJE. 



DACTYLOPIUM, Costa. 

 D. adonidum, Linn. 



PSEUDOCOOCUS, Westw. 

 P. aceris, Geoff. 



