LIST OF ILLUSTRATIONS. XI 



FIG. PAGE 



61. Mouth parts of a honeybee . , . ... . . . 153 



62. Tongue of a honey bee . . . . ........ . . . 153 



63. Head and mouth parts of a honey bee . . . . . 156 



64. Honeybee, worker, etc . i& . . . ... . . . 158 



65. Portion of brood comb of honey bee, one queen cell 159 



66. Modifications of leg of worker honey bee ... . 162 



67. Nest of mud dauber . . _. . , . ! . -. . . . . . 163 



68. Honey bee showing wax scales 169 



69. Cicada killer . ... . .... ..... . . . 169 



70. Tarantula killer 170 



71. Nest of "paper wasp . . ,- . .- . . 174 



72. Blow fly 177 



73. Mouth parts of a horse fly 184 



74. Antennae of flies ... 185 



75. Ocelli and compound eyes of a fly 186 



76. Metamorphosis of an oviparous fly, Phormia regina 187 



77. Stable fly . 189 



78. Mouth parts of house fly . . ; .. . . . ; . . . 189 



79. Foot of a house fly * 190 



80. A house fly ;.. ^ . . . . ./ . . . . . 190 



81. Mouth parts of a female mosquito 194 



82. Life history of a mosquito . ... . i -. ... . . 195 



83. Female Anopheles with antenna of male .; j . . . 197 



84. Antennae of a mosquito (Culex) . . 4 . . . . . 199 



85. A flower fly . .' 201 



86. A bee fly . . .' . . . . . . ... . ...... 203 



87. Stages in development of a dragon fly ..... 210 



88. Nymph and adult of a May fly. . . . . . . . . 214 



89. Nymph and adult of a stone fly . .. . . '. . . ' . 218 



90. Lace-wing depositing eggs .......... 222 



91. Larva of a dobson ..."...... 223 



92. Adult dobson 224 



93. A mantispa .,..-...;.......... 225 



94. Egg, pupa, and adult dog flea ........... 228 



95. A milliped ..... . .-, . . ....... 232 



