CATALOGUE OF INSECTS. 449 



PHORODON, Pass. 

 P. humuli, Schrank. 



The hop plant-louse. Occurs wherever Hop and Plum grow. 



RHOPALOSIPHUM, Koch. 

 R. berberidis, Fitch. 



MEGOURA, Buckt. 

 M. solani, Thos. 



MYZUS, Pass. 

 M. cerasi, Fabr. 



DRBPANOSIPHUM, Koch. 

 D. quercifolii, Walsh. 



APHIS, Linn. 

 A. brassicae, Linn. 



The cabbage plant-louse. Common everywhere. 



A. cornifoliae, Fitch. 



A. cratsegeifolise. Fitch. 



A. diospyri, Thos. 



A. mali, Fabr. 



A. malifoliae, Fitch. 



A. maidis, Fitch. 



A. pinicolens, Fitch. 



A. pruni, Koch. 



A. prunifoliae, Fitch. 



A. rumicis, Linn. 



A. galicicola, Thos. 



A. sanibuci, Linn. 



A. sambucifoliee, Fitch. 



Sub-Family CALLIPTERIN^. 



MONELLIA, OestL 



M. caryella, Fitch. 



3d 



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