676 



Index 



Damsel-fly, nymph of, *84; 



ruby-spot, *90 

 Dance-flies, 332. 334 

 Dance-fly, mouth-parts of, 

 *335 ; venation of wing 

 of, *33S 

 Darkling ground-beetles, 



288 

 Dasyllis sacrator, *33i 

 Datana angusii, 394 ; ntin- 



istra, 393 

 Datura stramonium, spe- 

 cialization of, for insect 

 pollination, 571 

 Daunus swallowtail, 449 

 Dead-leaf butterfly, *6oi 

 Death's-head sphinx-moth, 



*438, *6i3 

 Death-watch. 271 ; beetles, 



265 

 Deer-flies, 328 

 Degeneration, among 



scale-insects. 180. 188 

 Dcilcfhila lineala, 435 

 Dcjcania corpulcnta, *346 

 Dendroctoiius valcns, 299 

 Dendroleon, 232 

 Dcrmatobia cyanivcntris, 



330 ; noxialis. 339 

 Dermcstcs lardarius. *264 

 Dermestidas. Dcrmestes 

 {/i(f>iitt, derma, skin ; 

 iaOUiv, csthicn. eat), 258, 

 263 

 Desmia maculalis. 378 

 Dcsmoccrus palliatus. 284 

 Development. 35 ; of bee- 

 tles, 250: of color-pat- 

 tern in giant wood-bor- 

 ing beetle, *598 : of color- 

 pattern in pupal wings of 

 monarch butterfly. *596; 

 of color-pattern in pupal 

 wings of promethea 

 moth. *S97 ; of egg of 

 fish-moth. *4o; of egg 

 of saw-fly. *39; of egg 

 of water scavenger-bee- 

 tle, *38 : of honey-bee. 

 522; of malaria-produc- 

 ing Ha;manioeba in hu- 

 man blood-corpuscle. 

 *6i8; post-embryonic, of 

 locust. *42 ; of scales on 

 wing of Atxosia plexip- 

 fus, *595 ; of scales on 

 wing of Euvancssa anli- 

 "/"". *S94 1 of wing-buds 



of giant crane-fly, *48 ; 



of wings of locust. *42 

 Devil's darning-needle, 76 

 Dexia, 346 

 Dexiinse, 341, 346 

 Diabrotica i2-punctata, 



279 ; longicornis, 279 ; 



soror, 279, *28o ; vittota, 



279 

 Diapheromera femorata, 



*i3i, 132, *6o3 

 Diaspis rosce. *i90 

 Diastropl.us ncbulosus, 



Diccrca divaricata. 267 

 Dichclia sulfurcana, *38o 

 Dicromorplia viridis, *I4I 

 Dictyopteryx, 73 

 Dicdrocephala inollipcs , 



170 

 Dicstrammena marmorata. 



*I5S 

 Differential locust, *137, 



141 

 Digestive epithelium, cells 



of. of crane-fly, *I7 

 Digger-wasps. 463 

 Dimorphic. 469 

 Dincutes cinarginata, *2S7 

 Diopsidae, Diopsis (ii, di, 



two; o-ipig opsis, eyes), 



347 



Dioptidae ( p r o b . ^i(. 

 dis. twice ; oil'ic, opsis, 

 seen, referring to the 

 two generations per year 

 in some forms). 407 



Diplosis pini-radiala. *324 



Diptera (''(. di, two; 

 TTTcpdv, ptcrum, wing), 

 56, 301 ; gcnuina, 303 ; 

 life-history o f , 302 ; 

 mouth-parts of. 302 



Dipterous larva;, histo- 

 blasts or imaginal discs 

 of, 47 



Directive coloration. 607 



Discal area or spot or cell 

 (near center of base of 

 wing) 



Diseases, insects in rela- 

 tion to. 615 



Dissostcira Carolina, *I4I, 

 143 ; brain of, *22 ; ner- 

 vous system of, *22 ; 

 pericardial membrane of. 

 *i8; respiratory system 

 of, *i8 



Diverse-land geometer, 

 *399 



Dixa-flies, 304 



Dixa sp., *3i9; larva of, 

 *3i8; mouth-parts of, 

 *3I9; pupa of, *3I9; ve- 

 nation of wing of, *320' 



Dixidse. Dixa (prob. ''uof, 

 dixus, double, or tie'f'r, 

 dixis, a showing, dis- 

 play), 304, 319 



Dobson-fly. *326 ; alimen- 

 tary canal of. *i6; head 

 of, showing mouth-parts, 

 *6 



Dobsons, 55 



Docophorus californiensis, 

 116; communis, 116, 

 *I20. 122; cursor, 116; 

 cxcisus, 1 16 : ictcrodes, 

 ri6, *ii9; lari, 116; per- 

 lusus. 117; platystoy- 

 mus. 116 



Dog- and cat-flea, *354 



Dog-day locusts. 167 



Dog-louse, sucking. *2I7 



Dolichopodid. venation of 

 wing of, *336 



Dolichopodidas. Dolicho- 

 pus (do?.ix6^ov^. dolicho- 

 pus, with long feet), 332, 

 335 



Dolichopus lobatus, *33S 



Dorcus parallclus, 273 



Dorsal (bact:ii<ard, oppo- 

 site of ventral) 



Dorsal vessel, valves of, 

 *i8; of locust. *i7 



f'oryphora 10-lincata, *278 



Dorypteryx. 113 



Double-eyed .sphinx, *435, 

 437 



Dragon-flies, 53. 75 ; col- 

 lecting nymphs of. 87; 

 colors of. 80; distribu- 

 tion of, 78 ; egg-laying 

 of, 82; food of, 81; life- 

 history of, 84; preserv- 

 ing adults. 88; rearing 

 nymphs of. 87 ; struc- 

 ture of. 79 ; table for 

 classification. 89 



Dragon-fly. *~6 ; circula- 

 tory system of, *I7; 

 giant, stages in develop- 

 ment of. *83 ; hero, 93; 

 nymph of, *76. *77 ; ve- 

 nation of wing of, *89; 



