I 



PLATE \T. 



Galls Formed by Hymenopterous Insects. 



Blackberry Seed Gall, Diastrophiis cuscutceformis O. S. 



2. Knot Gall, Diastrophiis nebulosus O. S. 



3. Mealy Rose Gall, Rhodites ignotus O. S. 

 ■4. Oak Bullet Gall, Holcaspis globulus Fitch. 

 5. Mossy Rose Gall, Rhodites roscr Linn. 



All natural size. 



