1917] A Synopsis of Eumenidce 359 



The color pattern, however, is more like that of verticalis and 

 on none of the four species are the markings as extensive as on 

 coloradensis. Globulosus is unique among the four species 

 by the failure of the furrow of the propodeum to extend upward 

 to the metanotum and by the broader and more depressed 

 second segment of the gaster. 



Eumenes coloradensis Cresson. 



Etimenes coloradensis Cresson, E. T., Rept. Geog. and Geol. Surv. West of the 

 100th Meridian, vol. 5, 1875, p. 717-718. 



Distribution. — Described from Colorado. In the National 

 Museum are specimens from West Cliff, Custer Co., Colo.; 

 Beulah, San Miguel. Co., Hell's Canyon and White Mts., N. M.; 

 and Beaver Canyon, Fremont Co., Idaho. 



Type. — In Museum of the Philadelphia Academy of Natural 

 Sciences. (According to Cresson). 



Eumenes xanthogaster new species. 



Male. — ^Length, 10.75 mm.; wing, 8.25 mm. Clypeus narrow, 

 lateral angles obtuse, almost as near to base as to apex, apical emargina- 

 tion rounded, basal emargination deeper than that of fraternus, surface 

 finely punctate; thorax truncate in front, convex laterally; furrow of 

 propodemn of moderate depth; petiole campanulate, widest before 

 apical constriction, inflation more abrupt than that of fraternus, lateral 

 teeth not visible from above, punctations deep and sparse, second 

 segment of the gaster as wide as long, dorsal and lateral lines convex, 

 punctations finer than on first segment becoming more dense apically. 

 Black; clypeus, anterior aspect of the scape, ridge between the antennae, 

 a very short post-ocular line, anterior margin of the prothorax, outer 

 margin of the tegulae, a spot below the tegulae, a spot on either side of the 

 scutellum, metanotum, a spot on either side of the petiole, a narrow 

 band on the apex, on the second segment of the gaster large elongate 

 lateral spots nearly meeting dorsally and confluent with the wide apical 

 band, ventrally the apical two-thirds of the second segment of the gaster, 

 and the succeeding segments, both dorsally and ventrally, except basal 

 black bands, yellow; ends of femora, all of tibiae and tarsi, testaceous; 

 wings brownish. Pile very fine on clypeus, long on the dorsal aspect 

 of the head and thorax, and grading to fine on the second segment of 

 the gaster. 



Los Angeles Co., Calif. Described from three males 

 collected by the late D. W. Coquillet. 



Type.— Cat. No. 21381, U. S. National Museum. 



This species is closely allied to coloradensis but in addition 

 to the characters mentioned in the key it may be .distinguished 



