X LIST OF ILLTJSTKATI0X8. 



Scales ox a Gnat's Wing 84 



Bristle-tail 85 



Scale of Bristle-tail 86 



Battledoor-scale OF PoLYOMMATDs Alexis 89 



Fringed Scale of Pieris 91 



Scales of Diamond-Beetle 93 



Air-pipe of Fly 109 



Spiracle of Flt 112 



Spiracle of Leather-coat 114 



Spiracle of Cockchafer-grub 114 



Grub of Chameleon Flt 117 



Foot of Fly 132 



Foot of Water-Beetle 134 



Sting of Bee 144 



Gall-Fly, and Mechanism of Ovipositor 146 



Outer Saw of Saw-Fly 153 



Inner Saw of Saw-Fly 154 



Mouth of Beetle 162 



Maxilla and Lower Lip of Bee 164 



Lancets of Fejiale Gnat 173 



Tongue of Blow-Fly 175 



Sucker of Butterfly 180 



Antenna of Cockchafer 187 



Portion of Antenna of Oak Egger Moth 190 



Ear of Crab 199 



Daphnla. 207 



Cypris 209 



ZoEA of Shore-Crab 212 



Secon-d Stage of Shore-Crab 214 



Third Stage of Shore-Cbab 216 



Adult Shore-Crab 217 



Hantd of Barnacle 224 



Young of Barnacle 228 



Fang of Spider 238 



"Eyes of Spider 239 



Claws of Spider 250 



Head of Cheese-Mite 255 



Brachionus 267 



Mouth of Brachionus 270 



Whiptail „ 275 



Skeleton Wheel-Bearer , 279 



