EUMENES. 105 



Feet red or varied with yellow. Wings washed with ferruginous- 

 brown, with golden reflections; the radial cellulae a little brownish. 



% . Clypeus lengthened, bidentate, red or yellow, with a silvery 

 pile ; fore part of scape of antenna) yellow. 



Var. The ground color is often red throughout, and the only 

 black is on the vertex, the disk of mesothorax in part, and the 

 base of petiole. The second segment then has an orange band 

 mingling on its margin with the red or the brown which borders 

 it. It is probable that the highly-colored specimens have the 

 scutellum, the prothorax, and wing scales yellow. 



Bess. a. diff. — This species is easily recognized by its colors, 

 especially by the transverse band of the second abdominal seg- 

 ment and also by its strong puncturing. It has the abdomen 

 very densely punctured and this character would be sufficient to 

 show its difference from E. fraternus, if its markings did not 

 already suffice to distinguish it. It is also very similar to E. 

 americanus. Compare this species. 



Hob. The Southern United States. Florida. (I possess two 

 males.) 



c. Species of uncertain origin. 

 4S. E. compressus Sauss. 



Eumenes compressa Sadss. Vespides, III, 142, 28 ; pi. viii, fig. 5, 5a (1854). 



This species has the form of E. fraternus, but the petiole is 

 a little longer, and the 2d segment of the abdomen has no yellow 

 spots. 



Its origin is not known. — America??. (Mus. of Paris.) 

 It would fit next to E. Iturbide, in the section B, a, the wings 

 being rather cloudy iridescent. 



Division ZETA. 

 (Sadss. Vespides I, (57; III, 132, 146.) 

 Tetiole very long, linear at its base, there depressed and 

 widened inform of a ribbon; generally divided upon its dorsal 

 face by a longitudinal groove. The remainder of the abdomen 

 pyriform, compressed at the end ; the second segment subpedi- 

 Culate; ils base in some degree a short continuation of the petiole. 

 In this group the mandibles are very long, having indistinct 

 teeth; the head is flattened before; the thorax has a velvety 

 surface. It is wide before and its anterior angles are very dis- 

 tinct. The abdomen is quite lengthened. 



