586 



U. S. NATIONAL MUSEUM BULLETIN 216 



PART 



macilentus, Mesostenus, 456 

 Macrobatus, 15, 468 

 macrobatus, 468 

 stylator, 468 

 macrobatus, Cryptus, Macrobatus, 



Linoceras, 468 

 Macrocryptus, 15, 478 



lancifer, 478 

 macrurus, Mesostenus, 457 

 mactator, Listrognathus (Listrogna- 



thus), Ichneumon, 413 

 macula, Diapetimorpha, 381 (keys), 



S84 

 macula confederata, Diapetimorpha, 



385 (key), 386, 555 (figs.) 

 macula macula, Diapetimorpha, Hemi- 



teles, 385 (key), 886 

 macula ustulata, Diapetimorpha, 385 



(key), 386 

 maculatus, Gambrus, 70 

 maculosus, Cryptohelcostizus, 505 



(key), 512, 561 (fig.) 

 Madastenus, 13 



anteforealis, 16 

 bellicosus, 17 

 elongatus, 16 

 madecassus, Trachysphyrus, Cryptus, 



220 

 magnificus, Callicryptus, 279 

 major, Aptesis, 53 

 major, Messatoporus, 467 

 Mallochia, 13, 19, 36 (key), 93, 533 



(fig.) 

 agenioides, 93 and 94 (keys), 95, 



533, 551, and 554 (figs.) 

 frontalis, 93 and 94 (keys), 96, 97, 



551 and 554 (figs.) 

 laevis, 94 (keys), 97, 551 and 554 



(figs.) 



strigosa, 94 (keys), 95, 551 (fig.) 



mandator, Agrothereutes, Ichneumon, 



44 and 45 (keys), 67, 550 (fig.) 



mandator americanus, Agrothereutes, 



67 (key), 68 

 mandator mandator, Agrothereutes, 67 



(key) 

 Mansa, 6 



politicalypterus, 287 

 Mascarelia, 13 



purgatoria, 17 

 maurus, Xylophrurus bicolor, 482 (key), 

 483 



Mavia, 13 



curvicauda, 17 

 Mecocryptus, 6 

 Megacryptus, 15 

 Megaplectes, 6 

 Melanocryptus, 13 



melanostigma, Compsocryptus, Cryp- 

 tus, 279 

 melanurus, Mesostenus, 437 (key), 442, 



U3 

 Melcha, 14 

 Menaforia, 14 

 mentigus, Trachysphyrus, 184 (key), 



234 

 mentigus mentigus, Trachysphyrus, 



234 (key), 236 

 mentigus rhodomerus, Trachysphyrus, 



180, 234 (key), 235, 236 

 mentigus rufator, Trachysphyrus, 234 



(key), 235, 236 

 Meringopus, 13, 177 



recreator, 177 

 meritoria, Polycyrtidea, Bassus, 405 

 Mesochorus luctuosus, 483 



saint-cyri, 490 

 Mesocryptus, 13, 15, 178, 513 

 brachycentrus, 513 

 pulcherrimus, 178 

 Mesoleius, 179 

 Mesoleptus strigosus, 95 

 Mesophragis, 14 



mesorufus, Chromocryptus planosae, 

 Chromocryptus, 257 (key), 259 

 Mesostenidea, 12 

 Mesostenimorpha, 13, 256 

 nebraskensis, 256 

 planosae, 256 

 Mesostenina. 12, 21 (key), 32 

 Mesostenini, 4 (key), 7, 20 (key) 

 Mesostenoideus, 14, 413 

 albomaculatus, 413 

 Mesostenopsis, 15 



Mesostenus, 14, 17, 18, 36 (key), 434, 

 545 (fig.) 

 albinotatus, 435 and 436 (keys), 437 

 albinotatus albinotatus, 438 (key), 



439 

 albinotatus promptus, 438 (key), 



439, 440 

 albomaculatus, 413, 421 

 albopictus, 427 

 americanus, 439 



