92 



U.S. NATIONAL MUSEUM BULLETIN 2 68 



Figures 86-88. — 86, E. ruhripes Cresson (a= female face, b= female profile, c=male face, 

 d= female wing, e=male wing, f= female pygidium, g=male pygidium); 87, E. ruficeps 

 ScuUen (a= female face, b=male face, c= female wing, d=male wing, e=: female pygidium, 

 f==male pygidium); 88, E. similis Cresson (a= female face, b=male face, c= female 

 wing, d=male wing, e= female pygidium, f=male pygidium). 



