LIST OF ILLUSTRATIONS. XI 



FIG. PAGE 



6i. Mouth parts of a honey bee 153 



62. Tongue of a honey bee 153 



63. Head and mouth parts of a honey bee 156 



64. Honey bee, worker, etc 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 . . 195 



83. Female Anopheles with antenna of male . . 197 



84. Antennae of a mosquito (Culex) 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 



