446 PROCEEDINGS OF THE ACADEMY OF [1899- 



Eumenes uruguayensis Sauss. 



Chapada, November, December. One of each sex. The 

 male which is not yet described closely resembles E. mffma, with 

 the pronotum entirely rufous ; clypeus black, marked with yellow 

 on each side, armed at apex with two widely separated teeth, almost 

 as broad as long; scutellum red, distinctly impressed; as in the ?, 

 the petiole is much smaller than in suffusa ; base of second dorsal 

 impuuctate; seventh ventral not carinate, smooth; third submar- 

 ginal cell shorter than in suffusa. Length 8 mm. 



Eumenes compacta n. sp. 



?. — Black; head, thorax on sides and posteriorly, and abdo- 

 men with thin silky pile, that on middle segment brightest and 

 longest; spot between antennse, in the emargination of eye, on 

 base of mandibles, on sides of clypeus sometimes, short line on 

 hind orbits above, line at apex of petiole and before apex of 

 second segment, yellow ; antennae beneath, greater part of mandi- 

 bles, pronotum except a blotch on each side, sides of scutellum 

 and postscutellum sometimes, two comparatively small blotches on 

 middle segment, spot at top of mesopleurie (sometimes wanting), 

 tips of femora, except posteriors, tibiie except a stripe internally, 

 tarsi, and petiole at apex beneath and on sides slightly, rufous; 

 apical segments margined with testaceous ; front strongly punc- 

 tured ; ocelli in a curved line ; clypeus ai^pareutly very finely 

 striato-punctate longitudinally, almost as wide as long, termi- 

 nating in two sharp teeth preceded by a carina which becomes 

 gradually obsolete toward middle of clypeus ; thorax deeply punc- 

 tured, the pronotum most closely, the latter margined and with 

 the lateral angles prominent, though obtuse ; dorsulum with three 

 parallel impressions posteriorly; scutellum indistinctly impressed; 

 middle segment depressed or subconcave posteriorly; petiole elon- 

 gate campanulate, gradually enlarged from its basal third, the 

 enlargement strongly punctured and highly convex, transversely 

 depressed before apex ; second dorsal closely punctured except at 

 base, the third and fourth dorsals less closely; wings subhyaline, 

 broadly fuscous along costa and in marginal cell; stigma and 

 nervures blackish. Length 9 10 mm. 



&. — Colored like 9, with the rufous of thorax more diffused, 

 the hind margin of pronotum and a spot at each antero-lateral 



