WASP GENUS CERCERIS — SCULLEN 519 



Aug. 21, 1952 (H. E. Evans); 9, Wichita Co., 3300 ft. (F. X. Williams). 

 Nebraska: 9, Mitchell, July 17, 1916 (C. E. Mickel). Texas: 9, Conlen, 

 Aug. 8, 1952 (R. R. Dreisbaoh). Wtoming: 9, Terrington, Aug. 1, 1943 

 (D. G. Denning). 



Prey record. — None. 



Plant record. — Aielilotus alba (Nebraska), Solidago sp. (Colorado). 



77. Cerceris wyomingensis, new species 



Figures 102, 182a,b,c 



Female. — ^Length 11 to 12 mm. Black with light yellow and fer- 

 ruginous markings; punctation average; pubescence short. 



Head subequal in width to the thorax ; black except for large frontal 

 eye patches, most of the clypeus, small spot back of the eye, and basal 

 part of mandibles, all of which are light yellow; clypeal border fu- 

 liginous in color, with two broad blunt denticles between which there 

 is a carina-like extension, medially depressed; clypeal process sides 

 converging to a narrow, rounded apical end; mandibles that are 

 light fuscous in color apically have two denticles, the more apical 

 one the larger; antennae ferruginous basally becoming darker apically, 

 normal in form. 



Thorax black except for two widely separated patches on the 

 pronotum, and the entire metanotum, both of which are yellow, and 

 the tegulae, which are ferruginous; tegulae low and smooth; en- 

 closure deeply ridged with the lateral ridges diverging posteriorly 

 and a group of transverse ridges on the posterior part; mesosternal 

 tubercles absent; legs ferruginous except for the basal end of the 

 coxae, which are black; wings subhyaline. 



Abdomen black except for tergum 1, anterior part of tergum 2, 

 medium-broad but emarginate bands on terga 3 and 4, and broad 

 band on posterior part of tergum 5, all of which are light yellow; 

 venter black except the first two sterna, which are ferruginous; 

 pygidium with sides converging to a rounded apical end. 



Male.^ — Unknown. 



C. wyomingensis ScuUen is very close to C. nebrascensis H. S. Smith 

 in size, general color, and distribution, but the form of the clypeal 

 process will separate them; however, this process shows considerable 

 variation in form on each species. More collecting and field studies 

 may show a closer affiliation. 



Types.' — The type female of C. wyomingensis Sc\i[len,iTom.2S miles 

 east of Laramie, Wyo., 7700 ft., Aug. 6, 1934, at Cleome serrulata (H. A. 

 Scullen), is deposited at the U.S. National Museum, no. 66172. 

 Paratypes are as foUows: 



North Dakota: 9 . Breien, Aug. 21, 1922, at Eriogomim annuum (0. A. 

 Stevens). Wyoming: 9, 28 mi. E. Laramie, 7700 ft., Aug. 6, 1934, at Cleome 

 serrulata (H. A. Scullen). 



