INDEX 



589 



nubilipennis abdominalis, Xylophrurus, 



483 (key), 484, 485 

 nubilipennis luctuosus, Xylophrurus, 



483 (key), 485 

 nubilipennis nubilipennis, Xylophrurus, 



Cryptus, 483 (key), 484, 485 

 nuncius, Gambrus, Cryptus, 70 and 71 



(keys), 85, 550 (fig.) 

 Nyxeophilus, 15, 478 

 bimaculatus, 478 



obfuscator nigra, Idiolispa, 330 



obscurus, Agrothereutes lophyri, 60 

 (key), 61, 62 



ocellaris, Trachysphyrus aridus, Cryp- 

 tus, 229 (key), 230, 231 



ocularis, Listrognathus (Fenestula) palu- 

 data, 409 (key), 411, 412, 557 



(fig.) 

 Odontocryptus, 13, 15 

 spiniculatus, 17 

 variegatus, 17 

 Oneilella, 13 

 ontariensis, Agrothereutes lophyri, 60 



(key), 62 

 opacorufus, Cryptus, 279 

 Opidnus, 6 

 Opisoxestus, 13, 306 

 concolor, 318 

 ferrugineus, 306, 311 

 incompletus, 318 

 ruficeps, 317 

 orbitahs, Nematocryptus, Betsifia, 16 

 orbitalis, Nematopodius, 443 

 orbum, Lymeon, Cryptus, 393 (key), 



394, 395, 541 and 556 (figs.) 

 oregonensis, Habrocryptoides, Pseudi- 



schnus, Ischnus, 17, 165, 166 



(key), 167 

 oregonensis coxalis, Habrocryptoides, 



167 (key), 168 

 oregonensis oregonensis, Habrocyp- 



toides, Ischnus, 167 (key), 168 

 orientalis, Trachysphyrus, Neocryptop- 



teryx 178 

 Orientocryptus, 16 

 Orientostenaereus, 15 

 ornatipennis Callicryptus, 279 

 ornatus, Cryptohelcostizus, 505 (key), 



511,512 

 ornatus, Cryptus, 106 

 ornatus, Cryptus, Kaltenbachia, 70 

 Oronotus albomaculatus, 116 



Orthocryptus, 13, 333 



monticola, 333 



sanderi, 333 

 Osprynchotus, 15 

 Oxytaenia, 6 

 oxyura, Helcostizus, 514 (key), 516, 517 



Paehysoma, 14, 398 



albopictum, 17, 398, 399 

 stupidum, 398 

 Pachysomoides, 14, 19, 36 (key), 398, 

 541 (fig.) 

 fulvus, 17, 398, 399 (key), 400, 401, 



541 and 557 (figs.) 



stupidus, 17, 398, 399 (key), 400, 



557 (fig.) 



pacifica, Aritranis linnae, 105 (key), 106 



pacificus, Trachysphyrus, Cryptus, 180, 



181 (key), 198, 201, 551 and 566 



(figs.) 

 pallens, Compsocryptus, 281 and 282 



(keys), 293, 296, 565 (fig.) 

 pallidinerva, Listrognathus (Suvalta), 



412 

 pallipennis, Agrothereutes, 43 and 45 



(keys), 48, 49, 550 (fig.) 

 Palmerella, 14 

 paludata, Listrognathus (Fenestula) , 



408, 552 (fig.) 

 paludata californica, Listrognathus 



(Fenestula), 409 (key), 410, 412, 



557 (fig.) 

 paludata ocularis, Listrognathus 



(Fenestula), 409 (key), 411, 4:12, 



557 (fig.) 

 paludata paludata, Listrognathus (Fe- 

 nestula), Mesostenus, 409 (key), 



412, 557 (fig.) 

 Pammachus, 6 

 Paracryptus, 12, 13, 322 



hungaricus, 322 

 Paragambrus, 12 

 Parasilsila, 15 

 Parca, 15 

 Paretha, 15 

 pectoralis, Ischnus inquisitorius, 144 and 



145 (keys), 146, 148 

 penetrans, Mesostenus, Umlima, 434 

 peratra, Trychosis albitarsis, 358 (key), 



359, 360 

 peregrinator, Ichneumon, Pycnocryp- 



tus, 126 

 Perinetia, 14 



589900— «2- 



-40 



