10 LIST OF ILLUSTRATIONS 



Doubling and Hooks in a Bee's Wing 90 



Scales on a Gnat's "Wing 01 



Bristle-tail 93 



Scale of Bristle-tail 94 



Battledoor-scale of Polyommatus Alexis 97 



Fringed Scale of Pieris 99 



Scales of Diamond-Beetle 100 



Air-pipe of Fly 115 



Spiracle of Fly 118 



Spiracle of Leather-coat 119 



Spiracle of Cockchafer-Grub 119 



Grub of Chameleon-Fly 138 



Foot of Fly , 187 



Foot of Water-Beetle 140 



Sting of Bee 149 



Gail-Fly and Mechanism of Ovipositor 151 



Outer Saw of Saw-Fly 158 



Inner Saw of Saw-Fly 159 



Mouth of Beetle 166 



Maxilla and Lower Lip of Bee 168 



Lancets of Female Gnat 176 



Tongue of Blow-Fly % 178 



Sucker of Butterfly 183 



Antenna of Cockchafer 190 



Portion of Antenna of Oak Egger Moth 193 



Ear of Crab, from behind . 300 



Daphnia 308 



Cypris 310 



Zoea of Shore-Crab 318 



Second Stage of Shore-Crab 216 



Third Stage of Shore-Crab 317 



Adult Shore-Crab 218 



Hand of Barnacle 233 



Young of Barnacle 228 



Fang of Spider 236 



Eyes of Spider 238 



Claws of Spider 249 



