HOST INDEX. XV 



Dahlia sp. Page. 



Apple leaf-hopper, Empoasca mall 41 



Greenhouse thrips, Heliothrips hcemorrhoidalis 32 



Daisy {Bellis perennis) . 



Twelve-spotted cucumber beetle, Dialrotica soror 229 



Dammara sps. 



Golden mealy bug, Pseudococcus aurilanatus 98 



Daphne gnidium. 



Ivy scale, Aspidiotus hedeue 128 



Devilwood (Osmanthns americainis). 



Citrus white fly, Aleyrodes citri 350 



Dew Drop {Duranta sp. ). 



Black scale. Saissetia olew 119 



Dill {Anathum graveolens) . 



Celery caterpillar, Fapilio poJtjxencs 198 



Dock {Rumex sp. ). 



Alfalfa looper, Autographa gamma caUfoniica 162 



Beet louse. Pemphigus hetcr 53 



Citrus thrips, Euthrips citri 3-4 



Hop flea beetle, Psylliodes punctulata 231 



Dogwood {Cornus sp. ). 



Oyster shell scale, Lepidosaphes ulmi 139 



Easter Lily (Liliiim Inngifiorum var. exiniium) . 



Six-spotted mite, Tetranijchus himaculatus 8 



Egg Plant (Solanum melongena). 



Greenhouse white fly, Aleyrodes vaporariorum 145 



Harlequin cabbage bug, Margantia histrionica 146 



Six-spotted mite, Tetranijchus himaculatus 8 



Elaeagnus sp. 



Purple scale, Lepidosaphes hecJcii 137 



Elder (Samhucus sp. ). 



Alfalfa looper, Autographa gamma calif ornica . 162 



Elm ( Ulmus sps.). 



Apple leaf-hopper, Empoasca mali 41 



Cottony maple scale, Pulvinaria vitis 111 



European elm scale, Gossyparia spuria 93 



Frosted scale, Eulecanium pruinosum 116 



Grapevine flea beetle, Haltica carinata 230 



San Jose scale. Aspidiotus perniciosus 130 



Scurfy scale, Chionaspis furfura 123 



Elymus sps. 



Hessian fly, Mayetiola destructor 245 



Wild rye ripersia. Ripersia smithii 108 



English Dwarf Bean, see Broad Bean. 



Eucalyptus sps. 



Black scale, Saissetia olew 119 



Greedy scale, Aspidiotus camellicr 127 



Ivy scale, Aspidiotus h^derw 128 



Red scale, Chrysomphalus aurantU 133 



Eunanus brevipes. 



Bean thrips, Heliothrips fasciatus 30 



Euonymus sps. 



Buonymus scale, Chionaspis euonymi 122 



Greedy scale, Aspidiotus camellia 127 



Orange chionaspis, Chionaspis citri 121 



Red scale, Chrysomphahts aurantii 134 



Yellow scale, Chrysomphalus citrinus 135 



Eupatorium sp. 



Barnacle scale, Ceroplastes cirripediformis 112 



Euryptera lucida. 



Bean thrips, Heliothrips fasciatus 30 



False Bitter Sweet {Celastrus scandens) . 



Euonymus scale, Chionaspis euonymi 122 



Fennel (Forniciihtm. vulgare). 



Celery caterpillar, Papilio polyxenes 198 



