124 PLUM. LEAVES — PLDM LEAF- LOUSE. 



«. First fork at tip mucli fartler from the tip of the second fork than from the 



third vein, the cell as broad towards its base as at its apex. 

 /. The same cell very narrow, not half the width of those each side of it. 

 g. Only a single fork in the left wing. 

 h. Only a single fork in the right wing. 



The remedies already stated for the apple aphis, will be 

 equally efficacious for this and other species of this family. 



