452 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Figures 62-64. — Localities of: 62, C. zelica Banks; 63, C. aequalis aequalis Provancher; 

 64, C. aequalis bolingeri Scullen. 



Ungrouped Species 



The following species have not been separated into distinct groups 

 as yet. There is a distinct affiliation between certain species, however, 

 and further study may warrant the recognition of new, isolated 

 groups. 



44a. Cerceris aequalis aequalis Provancher 



Figures 63, 145a,b,c 



Cerceris aequalis Provancher, 1888, ?, p. 417; 1889, new species 9, pp. 417-8, 

 450.— Dalla Torre, 1897, p. 449.— Ashmead, 1899, p. 296.— Gahan and Roh- 

 wer, 1917, p. 335.— Banks, 1947, pp. 16-17.— Scullen, 1951, p. 1004. 



Cerceris vicinoides Viereck and Cockerell, 1904, p. 140. — Scullen, 1951, p. 1004. 



Cerceris psamathe Banks, 1912a, p. 21. — Scullen, 1951, p. 1004. 



Female. — Length 11 mm. Black with yellow markings; puncta- 

 tion fine and more scattered than average; pubescence average. 



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

 eye patches, dorsal surface of the clypeal process, lateral lobes of the 

 clypeus, base of the mandibles, spot back of the eye, and patch on 

 the scape, all of which are yellow; clypeal border with an extension 

 from the medial lobe that has a sinuate margin and a smooth de- 

 pressed area above the margin ; clypeal process with sides converging 

 to a rounded end that points ventrad at about a 45° angle, concave 

 and black below, yellow above with a black apical margin, mandibles 

 with two subequal denticles fused at the base, basad of which appears 

 a small evanescent denticle in some specimens; antennae normal in 

 form. 



Thorax black except for two widely separated patches on the pro- 

 notum, the metanotum, large patch on the propodeum, and the 



