304 PROCEEDINGS OF THE ACADEMY OF [1896. 



clypeus, thorax beneath and legsgriseous; dorsal segments 2-5 with 

 a fringe of golden-brown pubescence at apex, ventrals 2-5 with a 

 white fringe ; clypeus furrowed down the middle, bearing some 

 coarse folds anteriorly; front strongly and closely punctured, the 

 vertex with a few large, scattered punctures; occiput coarsely punc- 

 tured and posteriorly, in addition, bearing coarse folds or rugosities ; 

 scape with scattered punctures; pronotum except posterior margin, 

 strongly and closely punctured, bearing near each antero-lateral 

 angle a deep, oblique depression ; dorsulum with very large, rather 

 regularly placed punctures, which are but little sparser medially ; 

 scutellum smooth medially, strongly punctured at each side, the 

 metanotum impunctate; middle segment above somewhat prominent 

 in the middle at apex, the median division with large punctures 

 smooth at base, however, the lateral ones more finely punctured, 

 posterior face concave, smooth, at the sides crenulated, notcarinate ; 

 spines of medial and hind tibiae yellow, those of the tarsi and cal- 

 caria, whitish ; wings fulvo-hyaline, iridescent, particularly on apical 

 third, nervures and stigma fulvo-testaceous, apex of second submar- 

 giiial cell angular medially, but not sharply, the second transverso- 

 cubital vein being rather more sinuate than augulate ; dorsal segments 

 1-4 sparsely punctured medially, rather strongly and closely at the 

 sides, segment 5 strongly punctured throughout, ventrals shiny, 

 segments 2-4 with two transverse series of punctures, segments 5 

 and 6 more generally punctured, sculpture of the pygidial area much 

 as in angtdata, but finer, and when held in certain lights the pygi- 

 dium is clothed with a short appressed golden pubescence. Length 

 16-17 mm. 



Three specimens. Chapada (March). This seems quite distinct 

 from its allies in the color of the wings, which approaches that of 

 Saussure and Sichels "stirps Elidis vespiformis ; " those species have 

 the abdomen immaculate, however. 



Elis (Dielis) Smithii n. sp. 



In maculation, similar to confluenta, but the thorax immaculate; 

 wings faintly yellowish along costa. 



$. — Black; mandibles in ])art reddish; narrow transverse spot 

 on first and a large spot on each side of the second dorsal segments 

 orange, the spots on second segment almost united internallv, thereby 

 having the appearance of a band which is strongly emarginate in 

 the middle anteriorly ; otherwise the abdomen black ; insect with 

 pale pubescence, that on the vertex and dorsulum fuscous ; dorsal 



