274 E. T. CRESSON. 



posteriorly, with a sharp tooth on each side; tegulae fulvo-testaceous; wings 

 fuliginous, violaceous, basal half hyaline; legs fulvo-ferruginous, with whitish 

 pubescence, tips of tarsi dusky; abdomen long, polished, sparsely punctured, 

 especially on the middle, transversely rather deeply impressed on each side of 

 segments 2 — -4, basal margin of first segment, and apical margins of segments 

 1 — 5 narrowly fringed with white pubescence or scales, apical segment much 

 depressed at tip which is obtusely pointed and clothed with black pubescence, 

 inferior plate uniformly broad to apex which is rounded laterally, fringed 

 with fuscous or black pubescence and with a small acute tubercle on extreme 

 apex; venter sometimes .tinged with ferruginous and banded with white pu- 

 bescence. Length .35 — .40 inch. 



%. — Abdomen with eight short teeth at apex, one on each side of fifth and 

 sixth segments and two pairs at apex the lower ones longer and acute, the seg- 

 ment deeply incised above at tip. Length .35 inch. 



Five specimens. (Belfrage.) 



Stelis costalis, n. sp. 



J. — Black; head densely and coarsely punctured, face and clypeus clothed 

 with a short, thin whitish pubescence; anterior orbits, broader on each side of 

 face, and a short line behind ocelli, yellow ; anterior margin of clypeus fringed 

 with yellowish pubescence; mesothorax and scutellum with large rather close 

 punctures, a line on anterior margin of mesothorax, broadly interrupted medi- 

 ally, and continued narrowly on lateral margin, posterior margin of scutellum 

 and a spot on each basal corner, lemon-yellow; prothorax, sides of metathorax 

 and pleura clothed with white pubescence; metathorax abruptly truncated, 

 the basal margin coarsely crenulated ; tubercles and stain beneath tegulae 

 honey-yellow; tegulae honey-yellow, with a pale fuscous pupil; wings subhya- 

 line, the costa broadly fuscous from basal fourth to apex, the second recurrent 

 nervure received beyond apex of second submarginal cell; legs entirely fulvo- 

 ferruginous, with short pale pubescence; abdomen elongate, convex, not wider 

 than thorax, three basal segments with large, not close punctures, the apical 

 segments more closely punctured and clothed with a short golden pubescence, 

 first segment with a narrow subapical pale yellowish band squarely indented 

 on each side posteriorly, second segment with a short lateral apical pale yel- 

 lowish line, third and fourth segments with a narrow subapical band of same 

 color, that on the third squarely indented on each side anteriorly, that on the 

 fourth somewhat uudulated, apex broadly rounded, apical margins of the seg- 

 ments narrowly subtestaceous, smooth and shining; venter sparsely clothed 

 with pale hairs, apical segment broadly rounded and clothed with short dense 

 fulvous pubescence. Length .35 inch. 



% . — Clypeus tinged with brown, with a pale yellowish spot on each side ; 

 mandibles tinged with ferruginous; a narrow interrupted obscure yellowish 

 line behind ocelli; second abdominal segment with two small distinct yellow 

 spots on apical middle on a line with lateral spot, third, fourth and fifth seg- 

 ments each with a tolerably broad yellow subapical band, indented on each 

 side anteriorly and slightly notched in the middle, the sixth segment tinged 

 with ferruginous, with a transverse apical yellow spot, apical segment black, 

 with a short central tooth, sides not lobed. Length .30 inch. 



