EUMENID^. 



'59 



(6) 



12. 



13. 



(13) 

 (12) 

 (15) 14. 



(14) 15. 



Abdomen red at the base . . basalis. 



Abdomen not red at the base. 



Intermediate coxa? of (J with a long 

 yellow spine ; clypeus in the ? 

 with a yellow basal band . . EENirouMis. 



$ coxaj simple ; $ clypeus black. 



(J femora simple ; pronotum, in both 

 sexes, truncate in front, its angles 

 prominent LiViPES. 



Intermediate femora strongly den- 

 tate in the ^ ; pronotum in 

 neither sex truncate in front, nor 

 with its angles prominent. 



Larger, markings yellow, pubes- 

 cence of head and thorax denser 

 and dark spinipes. 



Smaller, markings nearly white, 

 pubescence of head and thorax 



pale MELANOCEPII ALL'S. 



Basal segment of abdomen with a 



transverse carina at the base. 

 Apical joint of the antennas in the 



(J sharply reflexed ; basal seg- 

 ment of abdomen clothed with 



long hairs (Subg. Ancistrocerus, 



Wesm.). 

 Second ventral segment, viewed 



sideways, elevated and distinctly 



angulated beyond the basal sal- 



oatnre caLLOSUS. 



Second ventral segment, viewed 



sideways, straight or gradually 



convex beyond the basal sulca- 



ture. 

 Second ventral segment, viewed 



sideways, not longitudinally con- 

 vex, but straight or even slightly 



concave; costa of basal snlcature 



very short .... parietum. 



Second ventral segment, viewed 



sideways, convex, costse of sul- 



cature longer. 

 Sides and apical concavity of pro- 



podeum dull. 

 Posterior tibia; narrowly black or 



brown at the base .... tbipasciatus. 

 Posterior tibia> pale at the base. 

 Abdomen with only three yellow 



bands tuimauginatus. 



Abdomen with many yellow bands. 

 Basal segment of abdomen wide, 



its apical band in the ? linear 



throughout PICTCS. 



