INDEX. 



PAGE 



Nicocles pictus 385, 389 



politus 385, 390 



rufus 385, 392 



Niteliopsis 108 



affinis Rohwer.,109, 110, 113 



fossor Rohwer 109, 116 



foxii 109 



inermis 109, 110 



licidis Rohwer Ill 



lucidus 109 



modestus Rohwer ....109, 116 



niger Rohwer 109, 115 



parvus Rohwer 110, 113 



plenoculoides 109, 114 



sayi Rohwer 109, 114 



striat ipes 108 



vierecki Rohzver. .108,110, 112 



Nothridae 415 



Notoglossa pacifica Rohwer.... .119 



Octosmicra carinifoveata Cam.A28 



curvidentata Cam 427 



pilicauda Cam 429 



Oncochalcls Jorgensenii Caw. ..430 



Oribatidae 408 



Oribata 409, 411 



clavata Ewing 411, 413 



figurata Ewing 411, 412 



laminata Ewing 411 



subaquila Ewing... All, 412 



Oribatella 409, 414 



magnilamellata Ewing.. All 



Ospriocerus 151, 183 



abdominalis 185 



eutrophus 185, 186 



minos 184, 187 



rhadamanthus 185, 187 



ventralis 185, 188 



Oxybelus denverensis Rohwer..ll8 



manni Rohwer 117 



polygoni Rohwer 116 



Passaloecus fasciatus Rohwer. ...99 



mandibularis 100 



relativus 100 



Pelops 409 



latipilosus Ewing 409 



PAGE 



Pemphredon cockerelli Rohwer. 103 



Perilampus igniceps Cam 431 



Photopsis capricornis Rohwer ..131 

 seminanula Rohwer 130 



Pisouopsis birkmanni Rohwer. .129 



Plesiomma 153 , 305 



funesta 307 



indecora 307 



leptogaster 307 



lineata 307 



unicolor 307 



Proctotrypes florissantensis 



Rohwer 134 



Psilocurus 152, 222 



modestus 223 



nudiusculus 223, 224 



Pycnopogon 154, 329 



cirrhatus 330 



Raphiginathus 404 



tessellatus Ewing. 404 



Rhyncholophidae 406 



Rhyncholophus 406 



longipalpus Ewing 407 



tumidus Ewing 406 



Robber-flies of N. America 137 



Saropogon 154, 344 



abbreviatus 345 



combustus 345, 347 



coquillettii Back 345, 348 



dispar 345, 349 



hyalinus 345, 351 



luteus 345, 351 



semiustus 345, 351 



Scleropogon cinerascens Back. .208 



helvolus 208 



picticornis 209 



similis 209 



Semora Cameron 432 



xanthopus Cameron 433 



Sphageus 152, 211 



chalcoproctus 212 



Smicra mendozaensis Cam 426 



ornatif rons Cam 425 



spinicoxus Cam 426 



Spilochalcis pulchripes Cam 424 



