50 



U.S. NATIONAL MUSEUM BULLETEN 2 68 



at about 45° ; mesosternal tubercle very small; all coxae, trochanters, 

 and the first femur black except for a creamy white spot on the above 

 femur, other leg parts ferruginous becoming darker on the third 

 tarsi; wings subhyaline clouded at the apex; the second submarginal 

 cell 13 petiolate. 



Abdomen black except for a divided band on tergum 1, emarginate 

 bands on terga 2, 3, 4, and 5; venter immaculate, pygidium with 

 the sides slightly convex converging to a rounded apex. 



Male. — Length 11 mm. Black with creamy white markings; 

 punctation average; pubescence very short and inconspicuous. 



Head very slightly wider than the thorax; black except for very 



V J X> 



Figure 30. Central Mexico. E. 

 morula, new species 



morula 



large eye patches, the entire clypeus, basal two thirds of the man- 

 dibles and a small spot back of the eye, all of which are creamy 

 white; the black vitta on the face extend to the clj^peal border and 

 fuse with the black of the vertex; clypeal border with three subequal 

 black denticles on the medial lobe; bristle-like setae over the entire 

 lower clypeal area; mandibles without denticles; antennae black and 

 normal in form. 



Thorax black except for a band on the pronotum extending onto 

 the posterior lobe, a divided band on the scutellum, the metanotum, 

 large patches on the propodeum, a patch on the pleuron below the 

 wing and a spot on the tegula, all of w^hich are creamy white; tegulae 

 low and smooth; enclosure with a medial groove and ridged at a 

 45° to 60° angle with the mesal groove; mesosternal tubercle absent; 



