350 



Insect Pests. 



THE PEAR LEAF-CURLING MIDGE. 



{Cccidomyia 'puri. ]]ouche.) 



In a few localities the edges of the leaves of young pear trees may 

 i'requently be found rolled up. 



This appearance is sometimes natural, but when rolled, owing to 

 the action of this insect, the leaves present an unhealthy appearance. 



l.EAVP;S ];(iI,LE]l liY MIDli 



(Cecidoiiiiila piji-i). 



[F. Edenden. 



E LARV.E 



On opening the rolls several small wliitish maggots of similar 

 form to the pear midge attacking the fruit {Diplosis pyrivora) will 

 be found. 



Sometimes the roll is only on one side of the leaf, at others on 

 both sides. These larvie, which are easily told as midge larvte by the 

 presence of the anchor process or breast bone beneath, leave the galls 



