138 



angles of sides of face and flagellum ferruginous 



xantliostoma 



Flagellum darker, face entirely dark longulus 



7. Inner orbits with a verv small whitish s]->ot a little 



above the antenna] sockets ....curvicaririatus- 



Inner orbits with a white line reaching much above 



the antennal sockets hcqimerfianus- 



Males 



1. Apical lobe of Tth sternite hornlike, 1st tergite not 



strongly punctured 2 



Apical lobe of 7th sternite flaplike 5 



2. 1st tergite microscopically distinctly and evenly 



sparsely punctured, yellow mark on sides of face 

 contiguous with the eyemargins above... curvicaririatus- 

 1st tergite not distinctly punctured, white marks of 



sides of face curving over base of antennae 



hequaertianus 



3. Seventh sternite wdth the lateral teeth strongly devel- 



oped, first tergite distinctly and strongly punctate.... 4 

 Seventh sternite with the teeth feebly developed, first 

 tergite not distinctly punctate longulus 



4. Basal area of propodeum not differentiated from the 



basolateral areas, stipites rounded at apex, not 



obliquely truncate outwardly 5 



Basal area of propodeum strongly differentiated from 

 the basolateral areas, the latter strongly and distinct- 

 ly pimctate, stipites acute at apex obliquely truncate 

 outwardly immarginatus 



5. Basal area longitudinally rugose, apical process of 8th 



?ternite acute nearly as long as the Avidth, on eithe 



side, of the basal part, clypeus shallowly impressed 



over most of its surface Dregei 



Basal area -^ermiculate and confusedly closely rugulose, 

 process of 8th sternite short, blunt, less than half the 

 width on either side, clypeus convex LigJitfooti 



