ILLUSTEATIONS. 



PAGE 



1. Eggs of Insects, magnified 16 



2. Larv* .17 



3. Pupae 18 



4. Insects in the Imago or perfect state .... 19 



5. Mason-Wasp .23 



6. Jaws of Mason-Wasp 24 



7. Cuckoo-Fly 25 



8. Mason- Wasp's Nest and Cocoons 25 



9. Mason-Wasp 25 



10. Nests, &c., of Mason-Wasps 26 



11. Towers built by Mason- Wasp 29 



12. Nests of Pompilus punctum 29 



13. Scolia Xantiana, and section of its burrow ... 35 



14. Mason-Bee 38 



15. Exterior wall of Mason-Bee's Nest 39 



16. Cells of a Mason-Bee . .39 



17. Cells of Mason-Bees 46 



18. Cells of Chalicodoma 49 



19. Nest of Synagris calida 50 



20. Cell of Mining-Bee . . . . . .51 



21. Cells of Carpenter-Bees, in an old post . . . .57 



22. Carpenter-Bee and Cells 58 



23. Carpenter-Wasp and Cells 62 



24. Rose-leaf-cutter-Bee and Nest 71 



25. Carder-Bee and Nest 75 



26. Breeding-cells of Carder-Bee 77 



27. Interior view of Carder-Bee's Nest 78 



28. Cells of Humble-Bee and Insects 80 



29. Nest of Common Wasp in early stage .... 88 



30. Section of Wasp's Nest 89 



31. Section of Social- Wasps' Nest 90 



