298 INDEX. 



balli, Deltocephalus 160 



basalaris, Erythroneura 250 



bicolor, Euscelis 177 



bifida, Kolla 89 



bilineatus, Deltocephalus 139 



Birds, natural enemies 26 



bracteatus, Hecalus 117 



brittoni, Thamnotettix 210 



brunneus, Parabolocratus 122 



Bythoscopinae 54 



Key to genera 54 



Bythoscopus 70 



apicalis % 71 



Key to species 70 



laetus 71 



Candida, Neocoelidia 226 



catalina, Lonatura 161 



Chlorotettix 217 



galbanatus 222 



Key to species 217 



necopinus 218 



spatulatus .- 219 



tunicatus 222 



unicolor 220 



viridius 221 



vividus 221 



Cicadella 84 



atropunctata 87 



gothica 87 



hieroglyphica 85 



hieroglyphica var. dolobrata 86 



hieroglyphica var. uhleri 86 



Key to species 85 



occatoria 88 



Cicadellidae, subfamilies 54 



Cicadellinse 77 



Key to genera 77 



Cicadula 226 



Key to species 226 



lepida 229 



punctifrons 227 



punctifrons var. repleta 227 



sexnotata 229 



variata 228 



ciliatus, Thamnotettix 214 



cinctus, Eutettix 184 



cinerea, Aceratagallia 61 



cinerea, Gypona 105 



cinereus, Phlepsius 203 



cinereus, Platymetopius 134 



cinerosus, Scaphoideus 131 



Climatic conditions as natural enemy 28 



clitellarius, Thamnotettix 211 



collinus, Deltocephalus 149 



collitus, Phlepsius 202 



coloradensis, Erythroneura comes var 258 



coloradensis, Mesamia 188 



comes, Erythroneura 254 



compactus, Deltocephalus * 156 



coccinea, Graphocephala 94 



comma, Euscelis 175 



