Index 
656 
Damsel-fly, nymph of, *84; 
ruby-spot, *90 
Dance-flies, 332, 334 
Dance-fly, mouth-parts of, 
*335; venation of wing 
of, *335 
Darkling ground-beetles, 
288 
Dasyllis soceata, *331 
Datana angusii, 394; min¬ 
is tr a, 393 
Datura stramonium, spe¬ 
cialization of, for insect 
pollination, 571 
Daunus swallowtail, 449 
Dead-leaf butterfly, *601 
Death’s-head sphinx-moth, 
*438, *613 
Death-watch, 271; beetles, 
265 
Deer-flies, 328 
Degeneration, among 
scale-insects, 180, 188 
Deilephila lineata, 435 
Dejeania corpulenta, *346 
Dendroctonus valens, 299 
Dendroleon, 232 
Dermatobia cyaniventris, 
339; noxialis, 339 
Dermestes lardarius, *264 
Dermestidae, Dermestes 
( Sip/ua , derma , skin; 
eoQieiv, esthien, eat), 258, 
263 
Desmia maculalis, 378 
Desmocerus 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, *597; of egg of 
fish-moth, *40; of egg 
of saw-fly, *39; of egg 
of water scavenger-bee¬ 
tle, *38; of honey-bee, 
522; of malaria-produc¬ 
ing Hsemamoeba in hu- 
m a n blood-corpuscle, 
*618; post-embryonic, of 
locust, *42; of scales on 
wing of Anosia plcxip- 
pus, *595; of scales on 
wing of Euvanessa anti- 
opa, *594; of wing-buds 
of giant crane-fly, *48; 
of wings of locust, *42 
Devil’s darning-needle, 76 
Dexia, 346 
Dexiinae, 341, 346 
Diabrotica 12-punctata, 
279; longicornis, 279; 
soror, 279, *280; vittata, 
279 
Diapheromera femorata, 
*131, 132, *603 
Diaspis rosce, *190 
Diastrophus nebulosus, 
473 
Dicerca divaricata, 267 
Dichelia sulfureana, *380 
Dicromorpha viridis, *141 
Dictyopteryx, 73 
Dicdrocephala mollipes, 
170 
Diestrammena marmorata, 
*155 
Differential locust, *137, 
141 
Digestive epithelium, cells 
of, of crane-fly, *17 
Digger-wasps, 463 
Dimorphic, 469 
Dineutes emarginata, *257 
Diopsidae, Diopsis (<h, di, 
two; o'pig opsis , eyes), 
347 
Dioptidae ( p r o b . oig\ 
dis, twice; opie, opsis, 
seen, referring to the 
two generations per year 
in some forms), 407 
Diplosis pini-radiata, *324 
Diptera (<h, di, two; 
TTTepdv, pterum, wing), 
56, 301; genuina, 303; 
life-history o f , 302; 
mouth-parts of, 302 
Dipterous larvae, 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 
Dissosteira Carolina, *141, 
143; brain of, *22; ner¬ 
vous system of, *22; 
pericardial membrane of, 
*18; respiratory system 
of, *18 
Diverse-land geometer, 
*399 
Dixa-flies, 304 
Dixa sp., *319; larva of, 
*318; mouth-parts of, 
*319; pupa of, *319; ve¬ 
nation of wing of, *320 
Dixidae, Dixa (prob. ditos, 
dixus, double, or 
dixis, a showing, dis¬ 
play), 304, 319 
Dobson-fly, *326; alimen¬ 
tary canal of, *16; head 
of, showing mouth-parts, 
*6 
Dobsons, 55 
Docophorus californiensis, 
116; communis, 116, 
*120, 122; cursor, 116; 
excisus, 116; icterodes, 
116, *119; lari, 116; per - 
tusus, 117; platystoy- 
mus, 116 
Dog- and cat-flea, *354 
Dog-day locusts, 167 
Dog-louse, sucking, *217 
Dolichopodid, venation of 
wing of, *336 
Dolichopodidae, Dolicho- 
pus (doTuxonovg, dolicho- 
pus, with long feet), 332, 
335 
Dolichopus lobatus, *335 
Dorcus parallclus, 273 
Dorsal ( backward, oppo¬ 
site of ventral ) 
Dorsal vessel, valves of, 
*18; of locust, *17 
Doryphora 10-lineata, *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, *76; circula¬ 
tory system of, *17; 
giant, stages in develop¬ 
ment of, *83 ; hero, 93 ; 
nymph of, *76, *77; ve¬ 
nation of wing of, *89; 
