INDEX. 



PAGE 



Polyoncus 300. 305 



nientalis Davis 305, 306 



platynus Davis 305, 306 



suburbe Davis 305, 306 



unicus Davis 305, 306 



Polypystis 269 



Polyrhysia 267 



Polysphiucta bicarinata Davis .... 368 

 granulosa Davis ■ • . ■ 369 



miuuta Davis 3(j9 



slossonse Davis 368 



spinosa Davis 368 



Polyterus 270, 289 



frauconiffiusis Davis. ■ ■ ■ 289 



olynipiffi 290 



Polytrera 266 



Porizonini 195 



Prionopoda 248, 253 



?begiiiii 253 



Pristomeiini 195 



Proclytus 241. 246 



flagellatus Davis 246 



Prosmosus 301. 309 



cymbaformus Davis ■ ■ • 309 



elongatus Davis 309, 310 



punctifrons Davis 309 



Protandrena mexicanorum 151 



Protarchus 265 



Pseudometopius Davis 197, 202 



liagenii 202 



pulchripes 203 



Psilusage 266 



Pterostoma 5. 17 



Ptilodou 5, 16 



Ptilodontidffi 1, 2. 5 



Ptilophora 5. 14 



Pydna 3, 7 



Pygaiia 4. 20 



Pyrachmou aldrichi Davis 363 



aniiulatum ...331 



jdalicensis Davis 363 



rufiira 331 



Qiiadrigana 266, 280 



americana 281 



Raehia 3 



Eamesa 3, 7 



Ehsestes 301, 311 



diflicilis Davis 311. 312 



iucessans Davis 311 



PAGE 



Ebigelus 269 



Ehimphalea 265, 274 



brevicorpa Davis 274 



Ehinotorus 271 



Ehorus 247. 248 



bicolor 249 



ottawsensis . . 249 



Saotis 270 



Sarcorychus 272 



Schizura 4, 11 



Scolobates 248, 264 



crassitarsus 264 



Scoparches 271 



Scopesis 270 



Scopiorus 248. 257 



analis 258 



expansa Davis 257. 258 



extricatus Davis ■ ■ . -258, 259 



gillettei Davis 257. 258 



hiatus Davis 257, 258 



quebeceusis 257. 258 



subcrassus 258, 259 



Sialidfe 22 



Sialis concava Banks 22 



Silo pallidus Banks 29 



Somera 4, 13 



Spauotechnus 300, 302 



coloradeusis 303 



con color 303, 304 



decoloratus 303, 304 



discolor 303 



iladusZ)«ns 303 



obscu rel lus Davis 303. 304 



Spatalia 5. 17 



Sphinctus 197 



Spudsea 271, 291 



ovale Davis 291 



Stauropus 4, 9 



Steuomacrus 220, 224 



hastatus Davis. . .224, 225 



intritus Davis 224, 225 



?stigmatias 224, 225 



Stilpnini 197 



Stiplirosomus 301, 312 



obesa Davi.i 312 



Sychnoleter 300, 306 



spatiosus Davis 306 



Sychnoportus 269 



Syniberta 247, 252 



