WASP GENUS CERCERIS — SCULLEN 



439 



Male. — Length 16-18 mm. Black, dark amber, amber, and 

 yellow; punctation coarse and deep; pubescence normal. 



Head subequal in width to the thorax; face yellow below antennal 

 scrobes; black to dark amber above the antennal scrobes and most 

 of the vertex; large yellow patches back of the eyes; head otherwise 

 reddish amber; clypeal margin with a broad extension on the medial 

 lobe emarginate, on each side of the extension a low denticle-like 

 process; hair lobes very broad; mandibles dark at the apical end and 

 with a single prominent denticle dark at the apex; antennae with 

 each of the two apical segments about twice the length of the other 

 segments of the flagellum, the terminal one being somewhat curved 

 and blunt. 



Thorax largely reddish amber with the more elevated parts yellowish 

 and the depressed parts inclined to be dark; the following parts are 

 yellow infused with amber: divided band on the prothorax, two 

 spots on the scutellum, the metanotum, large patches on the pro- 

 podeum, patches on the pro- and mesopleuron, and the tegulae; legs 

 largely amber, becoming more yellow apically; wings clouded with 

 amber. 



Abdomen largely yellow with light amber on the anterior half of 

 the terga ; venter yellow ; pygidium almost round with the apical end 

 flattened. 



Figures 54, 55. — Localities of: 54, C. macrosticta Viereck and Cockerell; 55, C. compar 

 compar Cresson. 



Types. — The type male of C. macrosticta Viereck and Cockerell, 

 taken in New Mexico, is at the Philadelphia Academy of Natural 

 Sciences, no. 10381. The type male and allotype female of C. ampla 

 Banks, taken at Fedor, Lee Co., Texas (Birkmann) are at the 

 Museum of Comparative Zoology, no. 13769. 



