122 



GENERAL INDEX. 



Plant-louse (or plaut-lice) uiKletcrniinalile, infesting 

 orange, V, 17, 18. 



coloring matter of, V, 49. 

 tannin in gall of, V, 145. 

 Leucopis preying on, V, 279. 

 corn-root, in Nebraska, IV, 142. 

 and Lasius alienus, VI, 277. 

 hop, in Washington, V, CO. 



method of study of life liistory, VI, 83. 

 remedies against, IV, 84, 342, 346, 355, 

 401, 406. 

 melon, injury attributed to, due to l)ac- 

 terial disease, mm., IV, IT. 

 art., VII, 309-315. 

 Plants and insects, interrelations of, art., IV, 358-378. 

 Platamodes illinoiensis (Walsh MS.), possibly Isi-li- 



uoptera, IV, 393. 

 Platycliirus, larval habits, m., I, 5. 

 Platydactylus sex-spinosus, injuring rice, VI, 262. 

 Platydenia oregonense, on Oryptoporus obvolutus, V, 



133. 

 Platygaster aphidis, parasitic ou Aphis sp., IV, 125. 

 carya;, bred from cecidoniyiid gall un hickory, 



IV, 125. 

 lierrickii, parasitic on Cecidomyia destructor, 



IV, 125. 

 hiemalis, from Hessian fly, I, 323. 

 minutus, Hessian fly parasite, 1, 132. 

 philanna, parasitic ou Diplosis nigra, IV, 125. 

 Platync ita flavedana, parasitized by Bracon sp. ,1 1 , 348. 

 rostrana, parasite of, IV, 195. 

 scntana, parasitized by Bracon vernonia% II, 349. 

 on cotton, VII, 242. 

 Platynus nxaculicoUis, swarming of, ref., Ill, 177; 

 "\', 342. 



sp., accidental occurrence, VI, 221. 

 Platypsylla, no reason for cliange in ending, I, 301. 

 Platypsyllida', new family by Leconte, I, 3iil. 

 Platypsyllines, on Meguin's description, I, 301. 

 Platypsyllus, relation with Leptinus and Leptinillus, 

 I, 200. 



systematic relations of, as determined by the 



larva, art., I, 300-307. 

 additional study of, ref., Ill, 356. 

 castorinus, characterization, 1, 301. 

 castoris, art., I, 300. 



ultimate larva of, art., II, 201, 244-246,292. 

 on beaver skins, IV, 394. 

 Platypteryx arcuata, parasitized by Rhogas platyp- 



terygis, II, 352. 

 Platypus compositus, on orange, m.. Ill, 418; V, 17. 

 in forestry exhibit, VI, 227. 

 flaviiMirnis, injuring orango trees, VII, 413. 

 Platysamia cecropia, in Minnesota, II, 164. 



parasitized by Cryptns nuncins. III, 154. 

 parasitized by Ophion macrnrum. III, 1.54. 

 in Illinois, m.. Ill, 165. 

 gloveri (?), jiarasitized liy Anomalon exile (?), 

 Ill, 155. 

 Plecoptera, from Mississippi liottoms, II, 294. 

 Pleistodontes imperialis, Ausfralinu fig insect, ref., 



V, 03. 

 Pleonectyptcra finitima n. sp., dcscr., V, 333. 



spp., variability of, V, 333. 

 Pleurota, relationships, I, 82. 



Plocederus pedestris, boring timber in India, 11,264. 

 Plochionus timidus, feeding ou Hyphantria cunea, 

 111,422; V, 134. 



Plochionus timidus, scaixity of, VI, 257. 

 Plodia (Ephestia) interpunctella, in United States, I, 

 315; II, 167, 170. 



distinguished from kiihniella, II, 171. 

 in flouring mills, II, 278. 

 (zea;), synonymy. III, 134, 158. 

 notes on, III, 134, 158, 333. 

 parasitized by Limneria ephestia^. III, 158. 

 attacking lettuce seeds, V, 349. 

 at World's Fair, VI, 221. 

 in sugar, ref., VI, 275. 

 in currants, m., VII, 360. 

 preyed upon by Bracon honestor( = hebetor), 

 VII, 428. 

 Plum aphis, distinguished fmni hup aphis, I, 71. 

 resin wasli against, II, 270. 

 aspidiotus, in Illinois, VII, 360. 

 borer, American, in Illinois, ref., IV, 293. 

 curculio, treatment of, 1, 123; II, 92. 



rebuttal of Wier's statements, I, 193. 



correction, II, 2. 



scare in California, II, 90. 



in Nebraska, II, 258; m., IV, 133. 



spraying against, art, II, 305-310, 340; IV, 



2, 238, 293, 409; VI, 185. 

 imncturing apples, II, 383. 

 in Mississippi, m., IV, 34; ref., 90. 

 in New Jersey, IV, 45. 

 chip-trap process against, m., IV, 223. 

 in British Columbia, VI, 3, 

 tansy against, VI, 36. 

 in Wisconsin, letter, VI, 37. 

 parasites not considered of value in lessen- 

 ing, VI, 144. 

 gouger, oviposition of, I, 89. 

 a good species, II, 259. 

 egg-laying record of, .III, 227. 

 notes on. III, 227, 408, 469. 

 in Iowa Expt. Station bulletin. III, 307. 

 lilant-lousc, in Iowa, III 479. 

 sawfly. (See Sawfly.) 

 Plume moth, grape-vine, notes on. III, 469. 

 Plusia, parasite of. III, 72. 



experiments with bacteria affecting. III, 465. 

 brassica>, in Mississippi, I, 17; II, 283; III, 337. 

 in Colorado, I, 382. 

 parasitized by Copidosoma, II, 253. 

 in JWississippi, II, 283; III, 337. 

 abundance of. III, 86. 

 parasitized by Limncria tibiator. III, 157. 

 larva; destroyed by di.seaso, m.. Ill, 259. 

 on cabbage about AVasIiington, m., V, 07. 

 in Oklahoma, bull., ref., V, 148. 

 in New Mexico, VII, 210. 

 californica, injuring grape in California, II, .')6. 

 gamma, about Moscow, I, 94. 

 in Chile, I, 154, 155. 

 on clover in England, ni., V, 296. 

 Plutclla, cabbage, in New Zealand, II, 121. 

 in Canada report, ref.. Ill, 359. 

 serious injury by, in Indiana, II, 382. 

 remedy against, m., V, 73. 



(See also Plutella cruciferarum and Cab- 

 bage moth, diamond-backed.) 

 cruciferarum, differs from P. ochrella, I, 287. 

 damaging cal)bage in Africa, II, 2. 

 on cabbage, II, 382. 



