652 



U. S. NATIONAL MUSEUM BULLETIN 216 



nigricornis, Sinarachna, Polysphincta, 



259 

 nigrifrons, Clistopyga, 196 (key), 201 

 nigrifrons, Scambus (Scambus), Pimpla 



(Epiurus) 15, 37, and 40 (key), 



73, 74, 608 (fig.) 

 nigrita, Polysphincta, 273 

 nigrocephala, Clistopyga, 273 

 nigroscutis, Acropimpla, Charitopimpla, 



160 

 nikkoensis, Odontocolon, Odontomerus, 



459 

 nikkoensis, Zabrachypus, Polysphincta, 



225 

 nipponica, Coccygomimus, Pimpla, 338 

 nitens, Neoxorides, Xorides, 390 

 nitida, Rhysella, Rhyssa, 409 (key), 



411, 599 and 614 (figs.) 

 nordenskioldii, Pimpla, 329 

 nortoni, Megarhyssa, 417 (key), 600 



(fig.) 

 nortoni nortoni, Megarhyssa, 418 (key), 



420, 614 (fig.) 

 nortoni quebecensis, Megarhyssa, 418 



(key), 420 

 notandus, Calliephialtes, Pimpla, 81 



(key), 83, 617 (fig.) 

 notandus species group, Calliephialtes, 



80 (key), 81 

 notata, Poemenia, 376, 386 

 notator, Tromatobia, Pimpla, 175 (key), 



185, 186, 618 and 633 (figs.) 

 notator species group, Tromatobia, 175 



(key), 186 

 novita, Delomerista, Pimpla, 365 (key), 



372, 609 and 623 (figs.) 

 novita species group, Delomerista, 364 



and 365 (key) 

 nubilipennis, Dolichomitus terebrans, 



Exeristes, 121, 122 (key) 

 nucicola, Apistephialtes, Calliephialtes, 88 



and 89 (key), 95, 96; and 583, 626, 



630 (figs.) 

 nucum, Scambus (Scambus), Pimpla, 



15, 37 and 39 (key), 70, 608 



(fig.) 

 nudus, Coccygomimus, Pimpla, 313 and 



314 (key), 343, 345 

 nuperus, Priocnessus, 532 



obesus, Itoplectis, 283 

 obliterata, Rhysella, Rhyssa, 409 



occidentalis, Coleocentrus, 546 and 647 



(key) 548, 634 (fig.) 

 occidentalis, Ephialtes, 154 

 occidentalis, Scambus (Scambus) lon- 



gicorpus, 43 (key), 45, 46 

 occidentalis, Xorides, 392 

 occidentalis occidentalis, Coleocentrus, 



548 (key), 549 

 occidentalis pulchripennis, Coleocen- 

 trus, 548 (key), 549 

 occiputale, Spilopteron, Arotes, 569 



(key), 576, 624 (fig.) 

 ocellata, Acrodactyla, 231 (key), 232, 



619 (fig.) 

 ochropus, Odontocolon, 451 and 454 



(key), 482, 601 (fig.) 

 oculatoria, Tromatobia, 175 

 oculatoria species group, Tromatobia, 



175 (key), 178 

 Odontocolon, 438 (key), 448, 601 (fig.) 

 abdominale, 450 and 452 (key) , 462 

 abdominale abdominale, 463 (key), 



464 

 abdominale fergusoni, 463 (key), 



464 

 aciculatus, 480 

 aethiops, 450 and 453 (key), 460, 



461 

 alaskensis, 450 and 453 (key), 460 

 albotibiale, 451 and 454 (key), 480, 



482 

 appendiculatus, 456 

 atripes, 450 and 452 (key), 478, 479 

 bicolor, 449 and 452 (key), 455 

 brevicaudus, 450 and 452 (key), 



474 

 canadense, 451 and 453 (key), 466, 



469 

 cilipes, 449 and 452 (key), 454, 455 

 curtum, 450 and 453 (key), 469, 



470 

 dentipes, 448 

 depressum, 449 and 453 (key), 



469, 460 

 dichrous, 450 and 453 (key), 474, 



475 

 dreisbachi, 450 and 453 (key), 479, 



480 

 formicoides, 449 and 452 (key), 



457, 458 

 geniculatus, 459 

 hungaricus, 459 

 jezoensis, 454 



