KEY TO AMERICAN INSECT GALLS 



139 



ELBeutenmuller 



Fig. 141. Diastrophus palls, i. D. tru r'gTdVs ' Bass. 2, 3. D. kincaidi Gill. 4, 5. Black 

 berry root gall, D. r a d i c ufmlBass. (After Beutm., Am. Mus. Nat. Hist.) J 



