Bull. 15, Biological Survey, U. S. Dept. of Agriculture. 



Plate II. 



Fragments of Insects found in Birds' Stomachs. 



1. Mandible of grasshopper. 



2. Scale of moth. 



3. Tibio-femoral plate of grasshopper. 



4. Clasper of May-l)eetle. 



5. Prosternum of click-beetle. 



6. Mandible of cutworm. 



7. Wing-cover of weevil. 



8. Mandible of larval ground-beetle. 



9. Mandible of ant. 



10. Mesothorax of black wasp. 



11. Egg of May fly. 



12. Scutellum of bug. 



