KEY TO AMERICAN INSECT GALLS 



91 



ELBeutenmwI/er 



Fig. 88. Oak apples. 1,2. Keeled oak apple. Amphibolips tinctoriae Ashm. 3-5. 

 A. globulus Beutm. 6, 7. A racemaria Ashm. 8-10. Translucent oak gall, A. n u b i 1 i - 

 p e n n i s Harr. (After Beutm., Am. Mus. Nat. Hist.) 



