90 



U.S. NATIONAL MUSEUM BULLETIN 2 68 



Figures 79-81. — 79, E. menkei Scullen (a = female face, b = female mandible, c-= female 

 wing, d = female pygidium); 80, E. mojavensis Scullen (a = male face, b = male wing, 

 c = male pygidium); 81, E. montana Cresson (a = female face, b«=female profile, c= 

 male face, d = male mandible, mesad, e-=male mandible, ventral, f=female wing, g= 

 male wing, h = female pygidium, i=male pygidium). 



