ENGLISH INDEX. 



677 



Hybernation of insects: in the egg 

 state, ii. 427 : pupa state, 430: 

 larva state, 431 : perfect state, 

 432 : places to which they resort 

 for, 434 : cold not the only 

 cause of, 454. 



Hymenoptera (gregarious) not sub- 

 ject to the attack of ichneumons, 

 iv. 225. 



Ichneumons, i. 267 ; iv. 216, 230 : 

 how to extract fron caterpillars, 

 554. 



Ignis fatuus f ii. 417. 



Imago, i. 68 : motions walking, 

 ii. 302 : running, 306 : jumping, 

 309 : climbing, 316; against gra- 

 vity, 318: flying, 342: swim- 

 ming, &c.,359: burrowing, 361 : 

 development, iii. 290 : hatched 

 under a hen iv. 555 : sexual di- 

 stinctions, iii. 298 : age, 343. 



Insects, apparatus for killing, iv. 

 540 : annoyance of in what 

 -respects beneficial, i. 251 : be- 

 neficial in removing nuisances ; 

 as dung, 254 : carrion, 256 : in 

 keepingotherinsects,&c. within 

 due limits, 261 : as affording 

 food to quadrupeds, 280: to 

 reptiles, andfishes, 282; to birds, 

 287; to man, 301 : as articles 

 used in materia medica, 313 : 

 used for ornament, 317: as af- 

 fording materials for dyeing, 

 ink, &c., 3 1 7 : as producing wax, 

 326: honey, 329: silk, 332: 

 vitality of, ii. 446 : cold and 

 frost, effects upon, ii. 437, 446 : 

 definition of, iii. 28 : breeding 

 them, directions for, iv. 552 : 

 differ from Crustacea and Arach- 

 nida, iii. 9: education, effects 

 of upon, ii. 87 : errors (vul- 

 gar) concerning, i. 33 : fossil, iv. 

 570: food of vegetable,!. 382; 

 animal, 384; both animal and 

 vegetable, 386 : some univorous, 

 387 ; others omnivorous, 388 : 

 times of feeding, 391 : organs by 

 which they feed, 392 ; iii. 416 : 



stratagems employed in procu- 

 ring food by spiders,!. 403; by 

 the ant-lion, 425 : how best to 

 kill them when captured, iv. 

 536, 540 : imitations they exhi- 

 bit, i. 7; ii. 216: injuries they 

 occasion to man, i. 80 ; other 

 animals, 145; grain, 167; pulse, 

 175 ; herbage, 178 ; roots, 185 ; 

 kitchen-garden, 1 89 ; flowergar- 

 den, 194; fruit, 195; plantations, 

 20? ; to our food, 227; gar- 

 ments, 232; timber, 235; books 

 and cabinets, 239 : instincts, ex- 

 quisiteness of, ii. 467 ; number 

 of, 492 ; development of, 503 : 

 instruction afforded by insects, 

 i. 16: integuments of, iii. 393 : 

 intellect of, ii. 507; iv. 21, 32: 

 inventions they have anticipa- 

 ed, i. 14 : means by which they 

 defend themselves passive, ii. 

 216 ; active, 229 : luminous in- 

 sects, ii. 403 : noxious, how to 

 be destroyed, i. 28: number, 

 (supposed) of insects existing, 

 iv. 489 : compared with that of 

 plants, 489 : of carnivorous and 

 phytiphagous insects, 491 : ovi- 

 parous and ovo-viviparous in- 

 sects, iii. 65 : representative in- 

 sects, iv. 508 ; rank of, 373 : 

 strength of,iv. 195: setting and 

 preparing for cabinet, 543 : table 

 of relative size of, iii. 33 : trans- 

 formations of, i, 63 : memory of, 

 ii. 519. 



Insects, proper and improper, ii. 

 303. 



Instinct, change of in a spider, iv. 

 205, note. 



Itch, cause of, i. 90. 



Itching produced by hairs of cater- 

 pillars, i. 130. 



Jaws of insects, i. 393 : upper, iii. 

 313; under, 315. 



Jelly, secreted by ditto, iv. 139. 



Journal, entomological, how to 

 make, iv. 569. 



Jurine, system of, iii. 620; iv. 482. 



