418 ILLUSTRATIONS. 



Page 



3'j, Abdomen of chequered blow fly, opened and magnified, showing 



the coil of young larvae . • .... .110 



40. Coil of larvse of ditto, partly unwound ib. 



4 1 . Large grey blow-fly, with the abdomen opened, showing the young 



maggots Ill 



42. Breathing apparatus of the maggot of a large grey blow-fly . ib. 



43. Spider-flies, two figures 117 



44. Generation of a water-mite, four figures 121 



45. Hatching of the egg of the garden-spider, four figures . . 124 



46. Egg of the privet hawk-moth, magnified, showing the enclosed 



embryo ........*• 125 



47. Caterpillar of ditto, when grown ib. 



48. Construction of eggs to facilitate the escape of the larvae, three 



figures 126 



49. Supposed animal and vegetable metamorphoses. . . .131 



50. Egg of the large cabbage-butterfly 133 



51. Embryo butterflies as they appear in the bodies of caterpillars, two 



figures ........... 135 



52. Female of the perfect cabbage butterfly ib. 



53. Magnified view of a section of the bud of a laburnum. . . 136 



54. Section of a bean-seed ib. 



55. Seed-leaves, root, and first true leaf of the beech . . , ib 



56. Dissection of the water grub of a May-fly .... 139 



57. Caterpillars of the Clifden nonpareil feeding on the grey poplar 142 



58. Ditto, in a more advanced stage of growth .... 143 



59. Walking-leaf-insect, magnified 144 



60. Transformations of the brimstone-moth 145 



61. Caterpillars of the swallow-tailed moth 146 



62. A two-v,ingeA &y (Vvlucella pl'imata) 149 



63. Transformations of the puss-moth 152 



64. Lobster-caterpillar 153 



65. Aquatic grubs of gnats in a glass vessel of water . . .155 



66. Larvse of the common gnat, floating in water, two figures . 156 



67. Buoy -like structure in the tail of a water-grub of a two-winged fly 157 



68. Telescopic tailed water larvae, three figures .... 15S 



69. Water- worms, two figures . . . . . . . 159 



70. Grub of the dragon-fly, and various parts of its body magnified, 



five figures . . . . . . . . • .162 



71. Mask of the dragon-fly grub, four figures . . . . 164 



72. Moulting of caterpillars, and magnified views of parts, ten figures 172 



73. Exuvia and pulmonary vessels of the rhinoceros-beetle . .175 



74. Goat-moth caterpillar "escaping from a drinking glass . . 178 



75. Magnified view of the dorsal muscles of the upper half of the cossus 182 



76. Caterpillar of cossus escaping from under a loaded glass . , 184 



77. Methods used by spiders and caterpillars for ascending their 



threads 186 



78. Caterpillar of the tiger-moth, two figures 187 



79. Grub of the museum-beetle, natural size and magnified, two figures ib. 



80. Tail of ditto, magnified ib. 



81. Hairs of ditto, magnified, two figures ib. 



82. Thorny hairs of caterpillars, three figures .... 189 



83. Green tortoise-beetle {Cassida equestris) . . . . .191 



84. Grub of ditto, magnified, to show its anal forks ... ib. 



85. Grub of ditto, with its canopy of excrements . . . . ib. 



86. Spit frog-hopper, and froth covering the grub of the same, two 



figures 192 



87 Caterpillar of the drinker-moth, two figures , . . .194 



88. Caterpillar of the angle-shades moth ..... ib. 



