304 



PA.GE 



simulatus MacGillivray, Tenth- 

 redo 267 



Simuliidae 181 



Simulium Latreille 181 



arcticum Malloch 181 



forbesi Malloch 181 



Johannseni Hart 181 



parnassum Malloch 181 



piscicidum Riley 181 



venustoides Hart 181 



Sinaloa Scudder 143 



pulchella Hebard 143 



sinaloa Hebard, Insara 142 



sinaloae Hebard, Montezumina. 142 

 slngularis Ashmead, Solenaspis. 216 



Sipha Passerini 155 



flavus (Forbes) 155 



Siphonophora Koch 156 



aceritoliae Thomas 156 



heucherae Thomas 156 



minor Forbes 156 



Siricidae 268 



slossonae MacGillivray, Poly- 

 bates ._ 256 



slossonae' Malloch, Cricotopus.. 170 

 slossonae MacGillivray, Macro- 



phya 269 



slossonii MacGillivray, Tenth- 

 redo 267 



smectica MacGillivray, Tenth- 

 redo 267 



Smithomyia Malloch 204 



concinna (Van der Wulp).. 204 



snowi Hart, Odontomyia J82 



socia Van der Wulp, Limnophora 204 



solani Thomas, Megoura 155 



Solenaspis Ashmead 216 



singularls Ashmead 216 



solidagi'nis Girault, Aulacldea... 215 



Somatochlora Selys 144 



macrotona Williamson 144 



sordidata Girault, Anaphoidea.. 227 



sorghiellus Forbes, Coccus 158 



soror Davis, Phyllophaga 160 



sparta MacGillivray, Hylotoma 249 

 spathiophora Malloch, Fannia. . 199 



speciosa Hulst, Diastictis 232 



speciosissimus Girault, Micro- 



terys 218 



spectabilis MacGillivray, Ceratu- 



lus 239 



sphagnicola Alexander, Neophro- 



toma 162 



Spharagemon Scudder 143 



saxatile Morse 143 



Pace 



Sphecidae 230 



Sphenophorus Schonherr 160 



minimus Hart 160 



Sphex Linnaeus 230 



argentata Hart 230 



spicatum MacGillivray, Trichlo- 



soma 268 



spicatus Hart, Rhizobius 156 



spiculata MacGillivray, Hylo- 

 toma 249 



spiculatus MacGillivray, Stron- 



gylogastroidea 261 



Spilochalcrs Thomson 217 



anisitsi Girault 217 



Spilocryptus Thomson 213 



canarsiae Ashmead 213 



Spilogaster MacQuart 208 



copiosa Van de Wulp 208 



parvula Van der Wulp 208 



rubripalpis Van der Wulp.. 208 



signatipennis Van der Wulp 209 



spinidens Malloch, Hylemyia... 203 



spinifer Malloch, Chrysotus . . . . 183 



spiniger McAtee and Malloch, 



Stenolemus 147 



spiniger Malloch, Botanobia. . . . 190 

 spinigerellus Malloch, Pegomyia 20S 

 spinilamellata Malloch, Helina.. 200 

 sinnilamellata Malloch, Hyle- 

 myia 203 



spiritus Girault, Anagrus 227 



splendidus Malloch, Gaurax 191 



squamosa Hart, Geoica 155 



Stenolemus Signoret 147 



spiniger McAtee and Mal- 

 loch 147 



Stenomyia Loew 189 



nasoni Cresson 189 



Stephanodes Enock 228 



psecas Girault 228 



Stethynium Enock 229 



faunum Girault 229 



Stichothrix Foerster 229 



bifasciatipennis Girault 229 



stigmatus MacGillivray, Ten- 



thredo 267 



stipata MacGillivray, Pontania.. 270 

 stomachosus Girault, Aphycus.. 217 



Stratlomyiidae 181 



striaticorne Girault, Polynema 228 

 striatifrons Malloch, Lonchaea 189 

 striatus Malloch, Orthocladius 



(Trichocladius) 175 



Strongylogaster Dahlbom 260 



paciflcus MacGillivray 260 



primativus MacGillivray . . . 260 

 rufoculus MacGillivray 260 



