454 PROCEEDINGS OF THE ACADEMY OF 



ceous brown; legs brownish, tibiae and tarsi lighter, the four ante- 

 rior tibiae more or less obscurely testaceous yellow; front with 

 coarse, rather close, almost confluent, punctures, impressed; ocelli 

 forming a low curved line ; clypeus subquadrate, about as broad as 

 long, -with sparse, shallow punctures, terminating in two acute 

 teeth separated by a triangular emargination ; flagellum clavate; 

 pronotum coarsely, finely margined; dorsulum more strongly 

 punctured, especially posteriorly; scutellum more sparsely punc- 

 tured, impressed; middle segment with large, coarse punctures, 

 almost reticulate, the posterior surface deeply depressed or subcon- 

 cave; petiole as long as head and thorax, the stem rather robust, 

 and medially carinated longitudinally, the enlargement beginning 

 behind middle, evenly convex above, and with large separated 

 punctures, not depressed transversely before apex, but with a dis- 

 tinct dimple-like fovea at summit; second dorsal segment, when 

 viewed laterally, elongate, subangulate anterior to middle, with 

 fine, distinct punctures; second ventral segment with a transverse 

 fold or tubercle near base, a little depressed medially; wings sub- 

 hyaline, the costal cell (and marginal slightly) fuscous; third sub- 

 marginal cell much longer than high. Length 9 mm. 



Corumba, April. Three specimens. The shape of second 

 segment is very similar to that of E. superficialis, which belongs, 

 however, to the group of species having the head about as long as 

 In-oad. 



Eumenes pilosa u- sp. 



9. — Black, with distinct pale brownish pile, especially on second 

 dorsal segment, that on middle segment and petiole above longest; 

 antennae beneath fulvous; tips of mandibles ferruginous; line in 

 eye -emargination bordering the orbit beneath, line on posterior 

 orbit above, posterior margin of pronotum medially, tips of ante- 

 rior femora and anterior tibiae in front, spot at each side of apical 

 margin of petiole, and subapical band on second segment, yellow; 

 the remaining segments margined with testaceous; fore tibiae pos- 

 teriorly testaceous brown; front with deep, separated punctures, 

 indistinctly impressed; ocelli forming a very low curved line; 

 clypeus convex, broader than long medially, with large shallow 

 punctures, and terminating in two acute teeth separated by a tol- 

 erably large rounded notch; pronotum with deep punctures, 



