294 The University Science Bulletin. 



PAGE 



cinereus, Platymetopius 244 



circellata, Cicadella 231 



clitellarius, Thamnotettix 256 



coccinea, Graphocephala 234 



collinus, Deltorephalus 247 



comma, Euscelis 251 



communis, Helochara 233 



Conclusions 264 



consobrina, Memnonia 238 



curtesii, Euscelis 251 



curtipennis, Nephotettix 248 



dehilis, Deltocephalus 247 



Deltocephalus 245 



collinus '. 247 



debilis 247 



flavacosta 246 



inimicus 246 



parvulus 247 



reflexus 245 



weedi 245 



Dikraneura 



abnormis 261 



distinctus, Oncopsis. 228 



Dorycephalus 



platyrhynchus 239 



Dripculacephala 234 



moUipes 234 



noveboracensis 235 



reticulata 235 



Driotura 



gammaroides 249 



duzeei, Idiocerus 225 



Empoasca 261 



livingstoni 262 



roali 263 



obtusa 262 



smaragdula 262 



trif asciata 26 1 



Errhomenellus 



montanus 236 



Erythroneura 263 



tricincta 263 



vulnerata 264 



Eugnathodus 



abdominalis 260 



Euscelis 249 



anthracinus 250 



bicolor 252 



