394 



Index 



29 ; nerve-centres, 33 ; eyes, 39 ; 

 air-tubes, 59 ; food-canal, 66 ; 

 eggs, 85; embryo, 91-2, 96: 

 hatching, loi ; larvje, 105-6, 

 109-11 ; affinity, fossils, 359-60. 



BerytidjE, 188. 



Bibionidse, 256-7. 



Biting-lice or Bird-lice, 178-9. 



Blade of maxilla, 13. 



Blastoderm, 89-90. 



Blattidae, 173-4. Sec also Cock- 

 roach. 



Blood, 54, 56, 70. 



Body-cavity, 54, 56, 98-9. 



Bombycidae, 245 ; larvje. 106-7. 



Bombylidz, 260. 



Book-lice, 1 80- 2 ; kidney-tubes, 7 1 . 



Bot-flies, 264, 308-9. 



Brachycera, 259-61. 



Braconidse, 274. 



Brahmzids, 246. 



Brain, 32, 35-6. 



Branches(ofthe Animal world), I -2. 



Brassolin^, 250, 298. 



BraulidK, 267. 



Breathing, 57-61 ; of aquatic larv^, 

 112-14; of pupas, 121 ; of 

 aquatic insects, 288-95. 



Breeding, 125. 



BrenthidsE, 223. 



Bristle-tails, 168-70; absence of 

 wings, 29; cercopods, 31 ; eyes, 

 37; abdominal limbs, 94; re- 

 lationships, 347-8. 



British and Irish insects, 296-7. 



Bruchidse, 220; larvs, iio-ii. 



Bugs, 186-191 ; jaws, 12, 14, 16; 

 eyes, 39; blood-vessels, 56; 

 food-canal, 67 ; poison-glands, 

 69 ; kidney-tubes, 71 ; eggs, 85 ; 

 embryo, 91 -2. 



Buprestidae, 216-17, 360. 



Burying-beetles, 210, 305. 



Butterflies, 246-50. Su also Lepi- 

 doptera, Moths. 



Byrrhids, 214-15. 



Caddis-flies, 225-7; pupje, 118, 



124; classification, 157; re- 

 lationships, 360. 



Cscal tubes. 63. 



Callidulida;, 238. 



Campodeid^. 169; ovaries, 75. 



Campodeiform larvje, 103-6, iii, 

 357-8. 



Capsidx, 190. 



Carabid^, 207-8, 360. 



Carboniferous insects, 252-5. 



Cardo, 13. 



Carnivorous insects, 305-7. 



Carrion-beetles, 210, 304-5. 



Castniidae, 233. 



Caterpillars, 106-11,230; eating 

 other insects, 311 ; protective 

 resemblance of, 317-20; web- 

 spinning habit, 328. 



Caves, insects inhabiting, 286-8. 



Cecidomyida:, 256, 304. 



Cell-structure, 4. 



Centipedes and insects, 2, 365-6. 



Cerambycids, 219-20, 360. 



Ceratocampids, 246. 



Ceratocombin^, 190. 



Cercopidx, 195. 



Cercopods, 31, 48, 78-9, 94. 105, 



372- 



Cessation of selection, 287. 



Chafers, 215-16. 



Chalcididae, 274-5 ; embryonic re- 

 production, 126. 



Chalcosiidse, 232-3. 



Chilopoda, 365-6. 



Chironomidx, 257. 



Chitin, 5. 



Chorion, 74, 84. 



Chordotonal organs, 43. 



Chromatin, 4. 



Chrysalis. See Pupa. 



Chrysidids, 276. 



Chrysomelids, 220-1, 360. 



Chrysophanus, 139. 



Chrysopid^, 205, 360. 



Cicads, 193-4; jaws, 12, 14, 16; 

 ovipositor, 76-7; larva, 117; 

 male claspers, 148-9; fossils, 

 355- 



