EUMENES. 80 



not! et post-scutelli, rufi.s ; pedibus et antennis partim ferrugineis; 

 abdominis seguientorum l 1 , 2' margine llavo; alls fuinosirf. 



9 . Total length, 11 mm. ; wing, 8 mm. 



£ . Total length, 10 mm.; wing, 7.5 mm. 



Very similar to E. mexicanus in its appearance, but a very 

 different type. Head transverse-oval; eyes very much inflated. 



Head more strongly punctured over the antennae ; no frontal 

 vertical carina, but the space between the antennae flat. Thorax 

 small, more densely and coarsely shagreened; roughish ; the 

 metathorax as coarsely shagreened as the mesothorax. Post- 

 scutel with a little arcuate crest on its anterior margin. 



Petiole elongate, as long as head and thorax, arcuate, more 

 filiform and cylindrical; not at all campanulate or pear-shaped, 

 but only a little funnel-shaped in the last third 1 (the lateral 

 margins forming not a somewhat convex line but a somewhat 

 concave one). Its extremity not rimmed nor canaliculate 

 transversely, but having a marginal impression above only, which 

 forces backward the middle of the border. The 2d segment not 

 depressed nor compressed. Petiole and second segment densely 

 and rather coarsely punctured ; the following polished. 



Black, grayish-silky; antennae beneath, margin of the tegulas, 

 and feet partly, dull-ferruginous ; a spot in the sinus of the eyes, 

 a frontal spot, both margins of prothorax, a little line under the 

 wing, post-tegu]«3, two spots on scutel and post-scutel, dull ferru- 

 ginous ; the margin of segments 1st, 2d of the abdomen, yellow. 

 Petiole beneath and above in the middle, brown-ferruginous. The 

 lamellar margin of the second segment, piceous; the margin of 

 the following, testaceous or yellowish. Feet ferruginous, brown 

 against the base. Wings subhyaline or smoky; nerves brown. 



?. Clypeus black, rather pentagonal, not elongate, delicately 

 punctured; its inferior border arcuate, scarcely bidentate; the 

 teeth small, not distant, or formed by two little parallel marginal 

 carinas; it s superior margins brownish. Mandibles short, rather 

 dilated at the extremity, rounded (or the outer margin arcuate, 

 the inner one obliquely truncate), with small teeth. When rest- 

 ing, they retract themselves behind the bonier of the clypeus, 

 crossing their teeth one into the other. 



%. Clypeus black, argenteous, with a rufous or yellow line on 



1 Somewhat like a straight trumpet or a clarionet. 



