CATALOGUE OF INSECTS. 449 



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PHORODON, Pass. 

 P. humuli, Schrank. 



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



RHOPALOSIPHUM, Koch. 

 R. berberidis, Fitch. 



MEGGURA, Buckt. 

 M. solani, Thos. 



MYZUS, Pass. 

 M. cerasi, Fabr. 



DRBPANOSIPHUM, Koch. 

 D. quercifolii, Walsh. 



APHIS, Linn. 

 A. brassicse, Linn. 



The cabbage plant-louse. Common everywhere. 



A. cornifoliee, Fitch. 



A. cratsegeifoliae, Fitoii.- 



A. diospyri, Thos. 



A. mali, Fabr. 



A. malifoliae, Fitch. 



A. maidie, Fiteh. 



A. pinicolens, Fitch. 



A. pruni, Koch. 



A. prunifoliae, Fitch. 



A. rumicis, Linn. 



A. salicicola, Thos. 



A. sambuci, Linn. 



A. sambucifoliee, Fitch. 



Sub-Family CALLIPTERINJE. 



MONELLIA, Oestl. 



M. caryella, Fitch. 



3d 



