INDEX. 



Abraxas ribearia, 202. 



Acarus, 121. [167. 



Acceleration, theory of evolution by, 



Achoriites, 145. 



Adela, 189. 



Agrion, 109. 



Agrion, egg-parasite of, 164. 



Agrotis, 197. 



Alternation of generations, 168. 



Alypia, 57, 197. 



American tent caterpillar, 187. 



Amnion, 166. 



Ancestral forms, 151. 



Antirena, 31, 4;"), 192. 



Angle worms, 189. 



Annelida, 161, 170. 



Anopheles, 189. 



Ant, 217. 



Antenna, origin of, 174. 



Antherophagus, 49. 



Ant lion, 115, 182. 



Ants, 189. 



Anura, 136, 145, 147. 



Anurida, 146. 



Apathus, 47. 



Aphis, 151, 203. 



Ai)lns eater, 75. 



Aphis of grain, 209. 



A]iple borer, 208. 



Apple insects, 83. 



Apple tree borer, 187. 



April, insects of, 187. 



Agoiuim, 191. 



Aquarium, 195. 



Arachnida, ancestry of, 189. 



Archetype, 186. 



Archetypes in Insects, 150. 



Arctia, 197. 



Argas, 123. 



Argynnis, 193, 197, 



Army worm, 55. 



Arrhenodes, 20(). 



Arthropoda, 166. 



Aspidiotus, 203. [honey bee, 39. 



Assmus, Edward, on parasites of 



Astoma, 122, 159. 



August, insects of, 209. 



Band, primitive, 163, 167. 



Bark borer, 188, 216. 



Bark louse, 203. 



Barnacle, 155. 



Bed bug, 96, 1S3. 



Bees, 17, 168, 206. 



Bee louse, 41. 



Beneficial insects, 190. 



Billings on Eophyton, 158. 



Bird tick, 84. 



Black fly, 73. 



Blight insect, 203. 



Bombardier beetle, 191. 



Borer, 187. 



Bot fly, 77. 



Botrytis, 47. 



Brachinus, 191. 



Brauer, F., on ancestry of insects, 



157. On two larval forms, 175. 

 Braula, 41. 

 Bi-eeze fly, 74. 

 Brephos, 189. 

 Bristle tail, 127. 

 Bruchus, 188. 

 Buprestis, 206. 



Cabbage butterfly, 55, 207. 



Caddis fly, 153. 



Caddis fly larva, 178. 



Caddis worm, 195. 



Calendar, Insect, 187. 



Caloptenus, 211. 



Calosoma, 190. 



Campodea, 133, 159, 170, 178. 



Campodea-stage fif insects, 157. 



Canker worm, 187, 201. 



Carabidffi, 189, 190. 



Carabus, 191. 



Carboniferous insects, 158. Myrio- 



pods, 158. Scorpion, 158, 

 Carpenter bee, 192. 

 Carpet fly, 75. 

 Case worms, 195. 

 Casnonia, 191. ■ 

 Caterpillar, origin of, 175, 179. 

 Cecidomyia, 168, 196, 203. 

 Cecidomvia tritici, 197. 

 Centipede, 149. 

 Ceratina, 24, 192. 

 Ceresa, 209, 



(221) 



