HOST INDEX. lv 



Oak, Maul — (Continued). Page 



California tent-caterpillar, Malacosoma califomica 411 



Cottony Kerrues, Kermes shastensis IIS 



Oak scale, Chionaspis quercus 163 



Polycaon stoutii 238 



Oak, Red (Quercus rubra). 



Sasscer's Kermes, Kermes sassceri 118 



Oak, Silver — see Gervillea. 



Oak, Valley (Quercus lobata) . 



California oak moth, Phryganidia califomica— 405 



Cockerell's Kermes, Kermes cockerelli 115 



Malacosoma constricta 411 



Oak Eriococcus, Eriococcus quercus 122 



Oak, Water (Quercus (aquatica) nigra). 



Citrus white fly, Dialeurodes citri 196 



Oak, White (Quercus alba). 



Cottony cushion or fluted scale, Icerya purchasi 110 



Oak scale, Chionaspis quercus 163 



Small gray leaf-beetle. Thricolepis inornata 301 



Oat (Arena sativa). 



Apple leaf-hopper, Empoasca mali 63 



Armyworm, Cirphis unipuncta 396 



Black plant-bug, Irbisia brachycerus 213 



Chinch bug, vlissus leucopterus 208 



Devastating grasshopper, Melanoplus devastator 45 



Granary weevil, Galandra gratia rid 307 



Lesser black plant-bug, Irbisia sericans 214 



Oat Aphis, Aphis avenw 87 



Pacific black plant-bug, Thyrillus pacificus 215 



Pellucid grasshopper, Camnula pellucida 43 



Red-legged grasshopper, Melanoplus femur-rubrum 40 



Red spider, Bryobia pratensis 14 



Rice weevil, Calandra oryzw 308 



Tarnished plant-bug, Lygus pratensis 212 



Tule billbug, Sphenophorus discolor 308 



Twelve-spotted cucumber beetle, Diabrotica 12-punctata 272 



Two-striped grasshopper, Melanoplus bivittatus 43 



Valley grasshopper, (Edaleonotus enigma 48 



Variegated cutworm, Lycophotia margaritosa 401 



(Enothera — see ^Evening Primrose. 



Okra or Gumbo (Hibiscus esculentum) . 



Corn ear-worm, Chlvridea obsoleta 397 



Harlequin cabbage bug, Murgantia histrionica 201 



Two-spotted mite, Tetranychus telarius 16 



Olea — see Olive. 



Oleander (Nerium oleander). 



Black araucaria scale, Chrysomphalus rossi 185 



Black scale, Saissetia olew 154 



Blue milkweed beetle, Chrysochus cobaltinus 259 



Citrus mealy bug, Pseudococcus citri 128 



Florida red scale, Chrysomphalus aonidum 182 



Hemispherical scale, Saissetia hemisphwrica 152 



Ivy or oleander scale, Aspidiotus hederw 177 



Long-tailed mealy bug, Pseudococcus longispinus 131 



Oleander or milkweed aphis, Aphis nerii 91 



Soft brown scale, Coccus hesperidum 143 



