KRV TO AMERICAN INSECT GAELS 



93 



ELB eufen muller 



Fig. 89. Philonix galls, i. Oak pea gall, P. pezomachoides O. S. 2-4. Oak hedgehog gall, 

 P. ,erinacei Beutm. 5. Yellow sea urchin, P. echini Ashm. 6, 7. Spiny oak gall, P. 

 prinoides Beutm. 8,9- Hairy oak gall, P. villosa Gill. 10. P. hirta Bass. 11. Jewel oak 

 gall, P. macrocarpae Bass. 12, 13. P- niger Gill. (After Beutm., Am. Mus. Nat. Hist.) 



