XXVI 
CONTENTS. 
Diptera. By W. F. Kirby, M.E.S., &c. 
Page 
The General Sub- 
ject 235 
Cecidomyiidae . . 238 
Mycetopliilidao . . 238 
Bibionidae .... 238 
Blepharoceridae . 239 
Culicidae 239 
Chironomidae . . . 239 
Tipulidae 239 
Page 
Xylophagidac . . . 240 
Stratiomyiidae . . 240 
Tabanidae .... 241 
Loptidao ’ 241 
Asilidae 241 
Nemestrinidae . . 242 
Bombyliidae . . . 243 
Cyrtidae 243 
Empidae 243 
Page 
Dolichopodidae . . 243 
Syrphidae 243 
Conopidae 246 
Ctenostylidao . . . 246 
GUstridae 246 
Muscidae 246 
Hippoboscidae . . 253 
Braulidae 253 
(Aphaniptera) . . 253 
By It. McLaciilan, F.R.S., F.L.S., &c. 
Neuroptera. 
The General Sub- 
ject 254 
Trichoptera . . . 255 
Neuroptera-Plani- 
pennia 257 
Pseudo -Neuroptera — 
Thysanura . . . 259 
Mallophaga . . 260 
Thysanoptera . 260 
Termitidae . . . 260 
Embiidae . . . 
. 261 
Psocidae . . . 
. 261 
Perlidae. . . . 
. 264 
Ephemeridae . 
. 264 
Odonata . . . 
. 266 
By It. McLaciilan, F.R.S., F.L.S., &c. 
Ortiioptera. 
The General Sub- 
ject 270 
Forficulidae .... 272 
Blattidae 272 
Mantidae 272 
Phasmatidae. ... 273 
Gryllidae ..... 274 
Locustidse .... 274 
Acridiidae .... 275 
Rhynctiota. By W. F. Kirby, M.E.S., &c. 
The General Sub- 
ject 276 
Hemiptera — Ile- 
teroptera 
Pentatomidae . . 277 
Lygaeidae .... 279 
Pyrrhocoridae . 282 
Tingididae . . . 282 
Aradidae .... 282 
Capsidae 283 
Anthocoridae . . 283 
Saldidao 284 
Reduviidae . . . 284 
Notonectidae . . 284 
Corisidae .... 285 
Hemiptera — Ho- 
moptera 
Cicadidae .... 285 
Cercopidae . . . 287 
Fulgoridae . . . 287 
Mombracidao . . 287 
Iassidae 287 
Psyllidae . . . . 287 
Aphididae .... 288 
Coccidae ..... 290 
Anoplura 292 
VERMES. 
By F. Jeffrey Bell, M.A., Sec. R.M.S., F.Z.S., 
Brit. Mus. (Nat. Hist.). 
Platyhelminthes . 
Nematohelminthes 
Acanthocephali . . 
1 Rotatoria 
6 Gephyrea 
8 Chaetognathi . . . 
8 
8 
9 
Annulata 
Enteropneusti . . 
Mesozoa ...... 
10 
15 
15 
ECHINODERMATA. By F. Jeffrey Bell, M.A , &c. 
Titles 1 
General Morpho- 
logy ....... 3 
Distribution ... 5 
Echinoidea .... 6 
Asteroidea .... 7 
Ophiuroidea ... 8 
Holothurioidea . . 8 
Crinoidea ..... 10 
