I 



PLATE VI. 

 Galls Formed by Hymenopterous Insects. 



Blackberry Seed Gall, Diastrophiis cuscutcvformis 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 roses Linn. 



All natural size. 



