HOST INDEX. XXXlll 



Devil-wood (Osmanthus aim ricanus) . PAGE 



Citrus white fly, Dialeurodes citri 196 



Dewberry or thornless blackberry (Rubws canadensis) — also see Blackberry. 



Grape leaf-hopper, Erytinoneaua comes 65 



Rose scale, Aulacaspis rosw 170 



Dianthus — see Carnation and Pink. 



Dioscorea — see Yam. 



Diospyros kaki — see Persimmon. 



Diplacus ylutinosiis — see Bush Monkey Flower. 



Dipsacus fullorum — see Fuller's Teasel. 



Dirca palustris — see Leatherwood. 



Dock (Rumex spp.). 



Alfalfa semi-looper, Phytometra califoniica 395 



Aphis viburni 94 



Bean aphis, Aphis rumicis 94 



Beet root aphis, Pemphigus betw TO 



Bur clover or cowpea aphis, Aphis mcdicaginis 90 



Citrus thrips, Scirtothrips citri 55 



Green dock beetle, Gastroidea cyanea 275 



Hop flea-beetle, Psylliodes punctulata 280 



Melon aphis. Aphis gossypii 90 



Sugar-beet wireworm, Limonius californicus 233 



White-lined sphinx, Celerio lineata 384 



Yellow bear caterpillar, Diacrisia virginica 390 



Dogbane (Apocynum sp. ). 



Potato flea-beetle, Epitrix cucumeris 201 



Dogwood (Com us spp.). 



Lintner's scale, Chionaspis lintneri 159 



Melon aphis. Aphis gossypii 90 



Oat aphis, Aphis avenw 87 



Oblique-banded leaf-roller, Archips rosaceana 441 



Oyster-shell scale, Lepidosaphes uhui 190 



Pernicious or San Jose scale, Aspidioius perniciosus 179 



Willow scale, Chionaspis salicis-nigrw 163 



Dondia (Dondia sp.) — also see Sea Blite. 



Sugar-beet leaf-beetle, Monowia puncticollis 279 



Dracena (Dracwna spp.). 



Fuller's rose beetle, Pantomorus fullcii 298 



Long-tailed mealy bug, Pseudococcus Jongispinus 131 



Duranta (Duranta sp.). 



Black scale, Saissetia olew 154 



Echinocactus (Echionocactus sp.) — also see Cereus and Opuntia. 



California cochineal scale, Dactylopius confusus 122 



Echionocystis — see Wild Balsam-apple and Man Root. 



Eggplant (Solatium melongena esculentum) . 



Armyworm, Cirphis unipunctata 396 



Green peach aphis, Rhopalosiphum persicw 9S 



Greenhouse white fly, Asterochiton vaporarionun 198 



Harlequin cabbage bug, Murgantia Mstrionica 201 



Pale-striped flea-beetle, Systena blanda 285 



Potato flea-beetle, Epitrix cuciimeris 261 



Potato stalk borer, Trichobaris trinotata 305 



Potato tuber moth, Phthorimeea operculella 44S 



Two-spotted mite, Tetranychus telarius 16 



Yellow bear caterpillar, Diacrisia virginica 390 



Elwagnus — see Silver Thorn. 



c— 13664 



