474 



IXDEX. 



Insect powder, 442. 



Insecticides, chapter on, 418, 434. 



Insects, defined, 11, 12, 54. 



Insidious flower-bugs, 156. 



Introduced insects, 421. 



Introductor}-, 9. 



lo moth, 284. 



Ipomasa, lar\-« on, 264. 



Ips fasciatus, 181. 



Isabella moth, 266. 



Isomera, defined, 165. 



Isoptera, 64. 



Isosoma species, 386. 



Jassidas, defined, 147. 

 Jigger-fleas, 329. 

 Joint-worms, 386. 

 Jug-handle grubs, 254. 

 Jumping plant-hce, 137. 

 June-bugs, 200. 



Kainit, against root-lice, 131. 

 Katydids, described, 94. 

 Kermes, described, 110. 

 Kerosene as an insecticide, 442. 



how it kiUs, 38. 

 Knapsack pumps, 461. 



Labium, structure and function, 16. 

 Labriim, structure and function, 15. 

 Lace-\\-ing flies, their habits, etc., 74. 

 Lachnostema, 201. 

 Lady-birds, described, 172. 

 Lastiha coccidivora, 315. 

 Lamellate attennas, 21. 

 Lamellicomia, defined, 165, 196. 

 Lampyridse, 190. 

 Lancets of fly mouth, 18. 

 Languria mozardi, 176. 

 Lantern-flies, described, 146. 

 Laphria, species, 344. 

 Laphygma frugiperda, 297. 

 Larder-beetles, 178. 

 Larridae, 403. 



Lan^se distinguished from worms, 11. 

 Lai^-al stage, 48. 

 Lasioderma serricorne, 193. 

 Lasius species, 394. 

 Lawns, ants on, 395. 



Leaf-beetles, described, 210. 



-chafers, 199. 



-hoppers, described, 146. 

 life-histor}-, 147. 



-roUer caterpillars, 319. 

 Leather-beetle, 178. 

 Lebia grandis, 168. 

 Lecanium, defined, 112. 

 Leggett Champion Powder-gun, 455, 

 Legs, where located, 25. 



structure of, 25. 

 Lema trilineata, 211. 

 Leopard-moth, 287. 

 Lepidoptera, chapter on, 240. 



defined, 54, 55. 

 Lettuce, root-lice on, 127. 

 Leucania albilinea, 296. 



unipuncta, 294. 

 Lice, biting, their habits, etc., 70. 



on domestic animals, 71, 105. 



sucking, 104. 

 Life-histor}s defined, 50. 



economic importance of, 50. 

 Ligyrus rugiceps, 203. 

 Limacodidse, 271. 

 Lime as an insecticide, 432, 446. 



as a preventive, 432. 



salt, and sulphur wash, 448. 



-tree moth, 308. 

 Limnophilus rhombicus, 78. 

 Litargus, 177. 

 Lixus concavus, 230. 

 Locomotion, organs of, 25. 

 Locust borer, 287. 



leaf-beetle, 222. 

 Locustidae, defined, 93. 

 Locusts or cicadas, 140. 

 Locusts, destructive species, 90. 



remedial measures, 92. 

 London purple, analysis of, 435. 

 Long-horned beetles, 205. 

 Loopers, 307. 



Losses caused by insects, 9. 

 Louse-flies, 369. 

 Loxostege similalis, 311. 

 Lubber grasshoppers, 91. 

 Lucanidae, 196. 

 Lucanus species, 197. 

 Lucillia macellaria, 357. 



