yo. 22S4. j^EW NORTH AMERICAN ICHNEUMON-FLIES— CUSHM AN. 539 



tate, apical ones subpolished; exserted portion of ovipositor half as 

 long as abdomen. 



Ferruginous; antennae fuscous, paler at base, nearly black at apex, 

 flagellar joints 7-9 white; palpi fuscous, occiput centrally, notauli, 

 thoracic sutures, alar region, front coxae at base, and ovipositor 

 sheath blackish ; wings hyaline with bands pale brownish. 



Type-locality. — Montgomery County, Pennsylvania. 



Type.— Cat. No. 21637, U.S.N.M. . 



Described from one female. 



CRYPTOiDEUS PURPURIPENNIS (Cresson). 



Cryptus purinirpcnnis Ckesson, Pi'oc. Acad. Nat. Sci. Phila., ISTS, p. 364, 



female. 

 Cryptoideus ptirpnripcnuis (Cresson) AsHirEAD, Proc. U. S. Nat. JIus., 



vol. 23, 1890, p. 42. 



A specimen of this species in the United States National Museum 

 from Santa Cruz Mountains, California, differs from 7'ufus Cushman 

 principally as follows: Much larger, 12 mm. long, head behind eyes 

 narrower than the eyes, the temples slightly sloping; malar space 

 nearly as long as basal width of mandible ; propodeum with apical 

 carina interrupted medially, spiracle large, slightly oval ; first tergite 

 at apex wider than distance from spiracle to apex; middle tergites 

 minutely, granularly opaque with very fine sparse punctures; ex- 

 serted portion of ovipositor two-thirds as long as abdomen. 



Antennae without white annuli; frons from bases of antennae to 

 and including ocellar triangle medially black; notauli and bases of 

 front coxae not black; wings dark purplish brown, the bands only 

 slightly darker and confined to immediately beneath the stigma. 

 Color otherwise like nifus. 



CRYPTOIDEUS SITKENSIS Ashmead. 



Crytoideus sitkensis Ashmkad, Proc. Wash. Acad. Sci., vol. 4, 1902, p. 193. 



This Alaskan species is similar in size and structure to purpurl- 

 fennis Cresson, differing structurally principally in having the longi- 

 tudinal carinae of the propodeum more or less distinct beyond the 

 basal carina, the areolet being completely defined and wider than 

 long, and the punctuation of the abdomen more dense and more dis- 

 tinct. The head is largely black, the ferruginous color being confined 

 to the clypeus, a small spot betw^een the antennae and the eye, and 

 a large spot in the posterior orbit; the thorax black ventrally includ- 

 ing the front coxae and bases of middle coxae, the sutures, notauli 

 and alar region more extensively black, this color embracing the post- 

 scutellum; the wings very pale brownish with the bands represented 

 by somewhat darker stains in the region of the stigma ; otherwise fer- 

 ruginous. 



