FRONTISPIECE. 
Tech. Ser. No. 3, Div. Entom., U. S. Department of Agriculture. 
LEAF GALLS OF PONTANIA. 
1. Pontania resinicola n. sp. 4, P. pomum Walsh. 7. P. bruneri n. sp- 
2. P. hyalina Norton. 5, P. pyriformis n. sp. 
3. P. desmodioides Walsh. 6. P. monile n. sp. 
