396 PROCEEDINGS OF THE NATIONAL MUSEUM. vol, 57. 



the Xoridini, we are agreed is Campopligine and allied to Pyracmon 

 Holmgren. 



Through Deuteroxorides the Xoridini are related to the Rhyssini 

 and through Xcyrides to the Odontomerini. 



ODONTOMEBINI, new tribe. 



Erected for the genera Odontomerus Gravenhorst and Aplomerus 

 Provancher, this tribe is most closely related to the Xoridini, especi- 

 ally to the genus Xorides Latreille. 



Tribe ICHNEUMONINl. 



From this tribe as treated by Ashmead we have withdrawn the 

 genera constituting the tribes Rhyssini, Lycorini, Glyptini, Poly- 

 sphinctini, Theroniini, and Ephialtini. Of the Nearctic and Pale- 

 arctic genera that remain we have had no opportunity to examine 

 specimens of the following: Trociocerus Woldstedt, Atractogaster 

 KJriechbaumer, OpisorTiyssa Kriechbaumer, Idiogramma Foerster, 

 Tromera Foerster, Eremochila Foerster, and Panteles Foerster. 

 Stilhops Foerster, Dyspetes Foerster, ScMzopyga Gravenhorst and 

 PolyspinctomorpJia Ashmead, are in our opinion Tryphonine, the 

 first belonging to the Tryphonini, the second to the Mesoleptini, and 

 the third to the Exochini; while PolyspinctomorpJia is Mesoleptine 

 and synonymous with Neliopisihus Thomson.^ 



Through Pseudorhyssa Merrill this tribe is rather closely alhed to 

 the Rhyssini. 



"Cushman, Proc. U. S. Nat. Mus., vol. 56, 1919, p. 378. 



