INDEX. 



Abdomen, how made up, 26. 

 Acanthia lectularia, 155. 

 Achatodes zeas, 299. 

 Acrididre, defined, 85. 



life history, 89. 

 Acridium species, 89. 

 Acronycta americana, 289. 

 Actias luna, 282. 

 Aculeata, defined, 390. 

 Adalia bipuncta, 174. 

 Adephaga, defined, 165, 

 Adhesive mixture, 437 

 Agallia sanguinolenta, 147. 

 Agaristidae, 264. 

 Agricultural ants, 398. 

 Agrilus ruficollis, 186. 



sinuatus, 187. 

 Air-sacs or bladders, 36. 



-tubes, extensile, 37. 

 Alaus oculatus, 183. 

 Alder-blight, 133. 

 Aletia argillacea, 301. 

 Aleyrodes citri, 122. 

 Aleyrodidce, 121. 

 AUorhina, species, 203. 

 Alulet, 365. 



Alypia octo-maculata, 263. 

 Ambulatoria, 81. 

 American blight, 133. 

 Amphicerus bicaudatus, 195. 

 Anabrus simplex, 97. 

 Anal glands and secretions, 30. 

 Anasa tristis, 160. 

 Anatis 15-punctata, 174. 

 Andrena species, 411. 

 Angoumois grain moth, 326. 

 Anisopteryx species, 307. 

 Anisota senatoria, 278. 

 Anomala lucicola, 202. 



Anomis species, 300. 

 Antennae, function of, 20. 



general characters, 19. 

 Anthocoridae, 156. 

 Anthomyiids, 360. 

 Anthonomus 4-gibbus, 232. 



signatus, 231. 

 Anthrax, species of, 345. 

 Anthrenus scrophulariae, 179. 

 Ant-lions, 76. 

 Ants, described, 390. 



and plant-lice, 127, 394. 

 Apanteles species, 383. 

 Aphaniptera, 328. 

 Aphelinus mytilaspidis, 385. 

 Aphididae, 123. 

 Aphidius species, 384. 

 Aphis-lions, 74. 



mali, 134. 



parasites, 383. 



persicae-niger, 134. 

 Aphodius, 198. 

 Apis mellifica, 414. 

 Apple, Anthonomus on, 232. 



blight-louse, 133. 



case-bearer, 324. 



codling moth on, 322. 



flat-head borer in. 186. 



leaf-crumpler, 313. 



long-horned twig-borers, 209. 



-louse, 134. 



-maggot, 366. 



oyster-shell scale on, 115. 



round-head borer in, 209. 



tree-hoppers on, 138. 



twig-borer, 195. 



yellow-neck caterpillar, 275. 

 Aquatic forms, how they breathe, 36. 

 Aramigus fulleri, 228. 



461 



