WASP GENUS CERCERIS — SCULLEN 365 



7. Cerceris carrizonensis Banks 



Figure 7 

 Cerceris carrizonensis Banks, 1915, 403. — Scullen, 1951, p. 1006. 



Max,e. — Length 6 mm. Black with creamy-white markings. 

 Tegiilae smooth and not elevated. In color and size it is close to 

 acanthrophila Cockerell. Markings of the type are discolored with 

 cyanide to some extent. 



This species is known only from the type. It may prove to be a 

 synonym, but the writer will retain it as a valid species until more 

 positive characters are found to separate these closely related species. 



Type. — The type male, from "Uvalde, Texas, June 18-20, 1930, 

 Wickham," is at the Museum of Comparative Zoology, no. 13772. 



8. Cerceris chilopsidis Viereck and Cockerell 



Figures 8, 113a,b,c 

 Cerceris chilopsidis Viereck and Cockerell, 1904, p. 136. — Scullen, 1951, p. 1006. 



Female. — Length 10 mm. Color black with creamy-yellow mark- 

 ings; normally pitted; clothed w^ith short silvery hairs. 



Head about one-sixth wider than the thorax; black except for large 

 frontal eye patches, the clypeus, basal half of the mandibles, and a 

 small spot on the front, all of which are creamy yellow, and two 

 round spots on the occiput, which are yellow; clypeal border slightly 

 extended medially, sinuate; clypeal process scoop shaped but broader 

 than long, with the free border black and curved down at the ex- 

 tremities; mandibles with two separate, subequal denticles dividing 

 the mandible into three subequal parts; antennae normal in form, 

 scape largely yellow, peduncle and apical end of scape amber, flagellum 

 light below and dark above. 



Thorax black except for two elongate patches on the pronotum, 

 two patches on the scutellum, the metanotum, patch below the wing 

 base, patches on the mesosternal tubercle, and the tegulae, aU of 

 which are yeUow; tegulae smooth and not elevated; enclosiu"e minutely 

 laced, with a central groove and pitted at the borders; mesosternal 

 tubercles prominent and largely yellow; legs dark amber basally to 

 near the apical ends of all femora, remaining parts of legs yellow 

 except for patches of amber on all tibiae and the medial tarsi; wings 

 subhyaline except for a clouded area at the apex and the stigma, 

 which is dark amber. 



Abdomen black except for a semidivided patch on tergum 1 ; sub- 

 equal bands on the posterior half of terga 2 to 5 broadly emarginate; 



742-463—65- 



