Ob PHYTOPTID^. 



where the crop of Oats preceding had been so full of Charlock that 

 the field was yellow with the flowers. In the index to Curtis's ' Farm 

 Insects,' there is a reference at p. 519 to this Ccntorhinchus contractus 

 as the " Charlock seed Weevil " ; and though nothing further appears 

 to be said on this head, still in the great want of information some 

 search into what Charlock-pods might show would be worth while. 



So far as remedial applications go, we have no notes of what have 

 been tried being of much service. 



PHYTOPTID^. 



Pear Leaf-blister Mites. Phi/toptus pyri,'i!\&\e^f\. 

 Black Currant Gall Mites. Phytoptus ribis, Westwood and Nalepa. 



Phytoptus pyei, female, nat. length circa 0'2 mm. ; left leg of the first pair of 

 P. TRiSTRiATUs, and (smaller figure) of P. tristeiatus var. carinea, magnified 550 

 times ; all after Dr. Nalepa. Infested Pear-leaf. 



