INDEX. 



Abdomen, ig. 



Acrididse, 72. 



Adult, 40. 



Agalena naevia, 224, 



Agamic, 177. 



Aglais milberti, 252, 



Alder-blight, 163. 



Ambush-bug, 274. 



American tortoise-shell, 252. 



Andrena, 269. 



Andriconia, 247. 



Angle-wings, 250. 



Anisota oak-worms, 199. 



Anosia plexippus, 249. 



Antennas, 12. 



Ant-lions, 77. 



Ant-nest, 278. 



Ants, 85, 178, 275. 



Aphididge, 163. 



Aphids, 75, 163, 175. 



Aphis-lions, 77, 78, 178, 179. 



Apple-tree tent-caterpillar, 168. 



Aquaria, 330. 



Arachnida, 53, 55. 



Arctiidae, 239. 



Arthropoda, 52. 



Automeris io, 189. 



Back-swimmers, 123, 128. 

 Bag-worm, 204. 

 Ballooning spiders, 226. 

 Basilarchia archippus, 249. 

 Basilona imperialis, 197. 

 Bees, 85, 254. 

 Beetles, 41, 85. 

 Belostoma, 130. 

 Bent-necked vials, 313. 

 Bird-lice, 69. 

 Bittacus, 79. 

 Black-flies, 156. 

 Black swallow-tail, 243. 

 Blank forms for labels, 319. 

 Blattidae, 71. 

 Blcpharoceridae, 159. 

 Blister-beetles, 273. 

 Block system of arranging collec- 

 tions, 311. 

 Blues, 247. 

 Book-lice, 68. 

 Books on insects, 336. 

 Boreus, 79. 

 Breathing holes, 19. 

 Breeding cages, 327. 

 Breeding of insects, 326. 

 Bristletails, 63. 

 343 



