514 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lie 



GUlaspy); 3? 9, 9cf cf, Richmond, Fort Bend Co., June 22, 1917 (Bequaert); 

 d^, Tarrant Co., June 13, 1948 (Barr) ; cf, Victoria, June 29, 1903 (A. W. Morrill) ; 

 cf , Waskom, Harrison Co., June 18, 1958 (R. L. Fischer) ; 9 , Wellborn, June 29, 

 1937 (Strandtmann). 



Prey record. — None. 



Plant record. — Alfalfa (Arizona), Bidens pipennata (Florida), 

 Donellsmithia hintonii (Mexico), Richardia scabra (Florida). 



74. Cerceris varians Mickel 



Figures 99, 179a,b,c 



Cerceris varians Mickel, 1917a, p. 336. — Banks, 1947, p. 18. — ScuUen, 1951, 

 p. 1010. 



Female. — Length 1 1 mm. Black with yellow markings ; punctation 

 and pubescence average. 



Head sUghtly wider than the thorax ; black except for the two large 

 frontal eye patches, upper surface of the clypeal process, lateral wings 

 of the clypeus, mesal patch dorsad of the clypeus, spot back of the 

 eye, base of the mandibles, and patch on the scape, all of which are 

 yellow; clypeal border with an extension from the medial lobe, which 

 has a sinuate margin and a smooth depressed area above the margin ; 

 clypeal process with the sides converging apically to an emarginate 

 end subequal in width to the epistomal suture; mandibles with two 

 distinct denticles, the more apical one the larger, and basad of the 

 smaller one a slight elevation where a third denticle would be ; anten- 

 nae normal in form. 



Thorax black except for two widely separated small patches on the 

 pronotum, a divided band on the metanotum, large patch oii the 

 propodeum, and a patch on the tegulae, all of which are yellow; 

 tegulae low and smooth; enclosure finely ridged with the ridges 

 running at an angle to the base; mesosternal tubercles absent; legs 

 largely yellow except the two basal segments, base of the femora, and 

 the apical ends of the hindfemora, which are black; wings subhyahne. 



Abdomen with a broad divided band on tergum 1, broad but 

 deeply emarginate bands on terga 2 to 5; sternum immaculate or with 

 lateral yellow patches on stemites 2, 3, and 4; pygidium with the sides 

 converging to a rounded apical end. 



Male. — Unrecognizable. In the aegualis complex. 



The female of C. varians Mickel closely resembles the female of 

 C. aegualis aegualis Provancher in size, structure, and color pattern, 

 from which species the former is separated by the form of its clypeal 

 process. The males are inseparable at present. 



Types. — The type female and allotype male of C. varians Mickel, 

 from Donner Lake, Placer Co., Calif., taken Aug. 24, 1916 (L. Bruner), 



