417 



ILLUSTRATIONS. 



Page 



1. (comparative figures of a bee and a syrphus 4 



2. Cell of a queen of the Termites bellicosi broken open in front ; 



the labourers surrounding the queen, and carrying off the eggs 15 



3. Groups of eggs of the rose leaf roller on a pane of glass . . . 20 



4. Plants of sphcerobulus, natural size 26 



5. Ditto, magnified view ib. 



6. Ditto, sectional view, with the seed just previous to projection . ib. 



7. Ditto, with the seed in tlie act of projection ib. 



8. Ditto, immediately after projection ib. 



9. Microscopic views of apple and pear mould 30 



10. Eggs of a butterfly and of a moth, magnified 41 



11. Magnified egg of the angle-shades moth ...... 42 



12. Sea egg, natural size ib. 



13. Egg of the meadow-brown butterfly, magnified 43 



14. Egg of the brimstone moth, magnified ib. 



15. Dung-fly, with its eggs magnified, and mode of deposition . . 44 



16. Lace-winged fly, and position of its eggs on a twig of lilac . . 45 



17. Ichneumon fly, with its ovipositor, magnified 57 



18. Ichneumon flies ovipositing 58 



19. Generation of Ichneumons, seven figures 62 



20. Magnified view of a parasite-fly {Evania apendigaster) ... 66 



21. Bee parasite (iSty^ops ilfe/tJte) .... ... 67 



22. Leaf-mining maggots and fly, four figures ..... 70 



23. Gnats forming their egg-boats 74 



24. Magnified view of the boat of gnats' eggs 75 



25. Female gypsey moths, and modes oif depositing their eggs, four 



figures • . 81 



26. Females of the brown and gold-tailed moths, two figures . . 83 



27. Tweezers of the brown and gold-tailed moths, magnified, two 



figures • ... 84 



28. Spiral groups of eggs of an unknown moth 85 



29. Eggs of the lackey-moth wound spirally round a twig of hawthorn, 



natural size and magnified, two figures 86 



30. Eggs of the coccus, covered with down, and with the bodies of the 



mothers 89 



31. Magnified cochenille insects, male and female, two figures . . ib. 



32. Eggs of the hawthorn coccus, covered by the body of the dead 



mother 91 



33. Ditto, one of these magnified ......... ib. 



34. Section of ditto, showing the eggs within ib. 



35. Suspended spiders' nests, three figures 94 



36. Vapourer-moth, male and female, and deposition of eggs, three 



figures 95 



37. Drum of the ear, showing that there is no passage through it to 



the brain 103 



38. Chequered blow-fly 110 



