262 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



minutely punctate, upper, lower, and posterior grooves foveolate, the 

 lower groove long, almost complete; metapleuron rugose, except the 

 small triangular basal poi-tion which is smooth; propodeum rugose, 

 carinae prominent, spiracle ovate, strongly oblique. First abscissa of 

 radius longer and thicker than that of basal vein; third and fourth 

 abscissae of cubitus about equal; second abscissa of cubitus slightly 

 shorter than recurrent vein; nervulus postf ureal by slightly over 

 half of its length; first abscissa of submedius shorter than second; 

 interanal vein represented by a short stump continued hj a pigmented 

 line. Fifth segment of f oretarsus longer than second ; apex of hind 

 tibia strongly thickened and expanded into a flaring process; inner 

 spur of middle tibia about 0.67 as long as basitarsus, second and fifth 

 tarsal segments about equal; inner spur of hind tibia slightly over 

 half as long as basitarsus, basitarsus flattened and slightly shorter 

 than the next four tarsal segments combined, second tarsal segment 

 longer than fifth; hind claws pectinate basally. First abdominal 

 suture slightly curved to the margin ; second abdominal tergite slightly 

 shorter than third medially; hypopygium about as long as the first 

 three tergites combined, its median ventral line without a longi- 

 tudinal fold ; ovipositor sheath polished, pubescent at tip, spatulate, 

 its exposed part about half as long as the hypopygiimi (pi. 5, fig. 18). 



Male. — Essentially similar to the female but with face medially, 

 posterior part of temple, metanotum except lateral depressions, lower 

 half of mesopleuron, metapleuron, and propodeum black; genitalia 

 f uscof erruginous ; antenna 41-segmented. 



Type. — In the Academy of Natural Sciences of Philadelphia. 



Type locality. — Pine Ridge, Nebr. (July). 



Described from two females and one male. The allotype is from "18 

 mi. E. of Lamar, Colo., 3,900 ft. elev.," H. A. Scullen. 



CARDIOCHILES VIATOR (Say), new combination 



Bracon {Toxoneuron) viator Say, Boston Journ. Nat. Hist., vol. 1, pt. 3, p. 258, 

 No. 15, 1836 (female, male). — LeGonte, Complete writings of Thomas Say 

 on the entomology of North America, vol. 2, j). 710, No. 15, 1859. 



Toxoneuron viator Cressox, Can. Ent, vol. 5, p. 69, 1873.— Patton, Psyche, vol. 7, 

 pp. 178-179, 1894. 



Toxoneura viatcyr Ashmead, Proc. Ent. Soc. Washington, vol. 3, pp. 49, 52, No. 11, 

 1894. 



Cardiochiles viator Viereck, Connecticut Geol. Nat. Hist. Survey Bull. 22, pp. 183- 

 184,1917 (1916). 



Female. — Length 7.0 mm. Body ferruginous except the following : 

 Antenna, vertex and f rons mostly, median spot on face, occiput, lower 

 and posterior part of cheek, malar region, apical and lateral margin of 

 clypeus, proepisternum, sometimes more or less of middle lobe of 



