102 BULLETIN 143, UNITED STATES NATIONAL MUSEUM 



punctures ventrally; sides of propodeum coarsely, foveately reticu- 

 late; posterior face and dorsum of propodeum deeply, foveately 

 reticulate. 



Abdomen black; apical third of second tergite, tergites 3-6, base 

 of ultimate tergite and apical fringes of sternites 2-3 laterally with 

 long, erect, j^qIIow pubescence; remainder of abdomen with long, 

 erect, black pubescence; first segment short, broad, nodose; first ter- 

 gite coarsely, confluently, foveately punctured ; second tergite densely 

 punctate, the punctures basally and laterally somewhat confluent; 

 tergites 3-6 with small, close punctures; ultimate tergite punctured 

 at the basal margin; pygidial area mostly glabrous, indistinctly 

 sculptured, with a median, longitudinal ridge; apical margin of 

 pygidium with a fringe of erect, short hairs; first sternite coarsely, 

 confluently punctate, the median carina prominent but not produced 

 or dentiform; second sternite with large, separated punctures 

 throughout, the punctures closer at the lateral margins; sternites 

 3-6 with small, scattered punctures at the apical margins; ultimate 

 sternite punctate and pubescent. 



Legs black, sparsely clothed with long black pubescence; calcaria 

 black. 



Wings dark fuliginous; cell 2nd R^ + Ro broadly truncate at the 

 apex ; cell R^ almost obsolete ; vein M3+4 received by cell R5 very near 

 its base ; veins r-m and R^ separated on vein r ; vein r-m very long 

 and strongly sinuate. 



Holotype.—Male, Medora, North Dakota, August 3, 1923 (O. A. 

 Stevens), in collection of University of Minnesota. 



Paratypes. — 4 males, Medora, North Dakota, August 3, 1923 

 (O. A. Stevens) ; male, Riley County, Kansas, July 17 (Popenoe) : 

 male, Hamilton County, Kansas, August 27; male. Phantom Lake, 

 Fort Davis Quad, Texas, July 12, 1916 (F. M. Gaige) ; 3 males, San 

 Augustine, New Mexico (Cockerell) ; male, Albuquerque, New Mex- 

 ico, August, 1894 (Snow) ; male, Gila River, New Mexico, July 22; 

 male. New Mexico, in collections of University of Minnesota, Kan- 

 sas Agricultural College, University of Michigan, New Mexico Agri- 

 cultural College, Cornell University, O. A. Stevens and the author. 



This species looks very much like myrice but is very different from 

 that species. It may be easily recognized by the punctate tegiilae, 

 absence of a carina on the antennal scrobes above, absence of a median 

 pit on the second sternite, presence of an apical fringe on the pygid- 

 ium, and vein M.^^ received by cell R5 very near the base; in some 

 specimens vein M3+4 is almost coalescent with vein r-m. The length 

 of the paratypes varies from 9-12 mm. This is probably the male 

 of stevensi. 



