WASP GENUS CERCERIS — SCULLEN 



389 



smooth except for a medial groove and a few deep lateral pits; meso- 

 sternal tubercles absent; all legs black basally to near the apical ends 

 of the femora, beyond which they are yellow except for a dark patch 

 on the hind tibiae and the apical tarsal segments, which become 

 darker; wings subhyahne but lightly clouded apically. 



Abdomen black except for a small semidivided patch on tergum 1, 

 a broad band on tergum 2, broad but deeply emarginate bands on 

 terga 3, 4, and 5, and a band on tergum 6, all of which are yellow; 

 pygidium with sides convex and both ends rounded and subequal in 

 width. 



The female of C. krombeini Scullen is very close in size, structure, 

 and color pattern to the female of C. astarte Banks but it can be dis- 

 tinguished by the differences in the clypeal denticles, the form of the 

 pygidium, and the color of the stigma of the wing, which is very 

 light in the latter and black in the former. 



Figures 23-25. — Localities of: 23, C. krombeini Scullen; 24, C. neahminax Scullen; 25, C. 

 poculum Scullen. 



Types. — The type female and allotype male of C. krombeini Scullen, 

 both from Continental, Ariz., Aug. 24, 1959 (K. V. Krombein), are 

 in the U.S. National Museum, no. 66158. Paratypes are as follows: 



Arizona: 4??, Continental, Aug. 2-4, 1959 (K. V. Krombein) ; 2 99, Madera 

 Canyon, Santa Rita Mts., July 31, 1958 (R. M. Bohart) ; 9, 10 mi. E. Nogales, 

 Sept. 2, 1957 (T. R. Haig) ; 9, 13 mi. NW. Nogales, Sept. 3, 1957 (T. R. Haig). 



Distribution. — This species is known only from 10 specimens 

 taken in a lunited area in southern Arizona. 

 Prey record. — None. 

 Plant record. — None. 



