1864.] 137 



o. Ich. Viola, n. sp. 



Black; antennae with abroad white annuluj ; wings deep violaceous; cen- 

 tral area of a metathorax somewhat conical, small. 



Female. — Black, shining, closely punctured; head with narrow whit- 

 ish orbits; clypeus polished, with a rounded, well impressed fovea on 

 each side; antennae rather short, black, the 10th to 18th joints white 

 above, the apical half involute, flattened toward the tip and brownish- 

 sericeous beneath. Thorax with a longitudinal, slightly impressed line 

 on each side anteriorly; scutellum slightly convex, polished; meta- 

 thorax deeply and confluently punctured, clothed with a short pale pu- 

 bescence, the elevated lines well defined, the central area small and 

 somewhat conical, almost smooth and rather indistinct. Wings dark 

 fuscous, with a deep violaceous reflection, nervures and stigma black, 

 areolet 5-angular or subtriangular, slightly oblique. Legs black, the 

 anterior tarsi in front whitish. Abdomen black, with a faint tinge of 

 blue, shining, minutely punctured; first segment broad, punctured; 

 basal foveas of the second segment deep, transverse, and somewhat 

 oblique; apical segments smooth and polished; ovipositor not exserted. 

 Length 8 lines ; expanse of wings 14 lines. 



Hah. — Pennsylvania. E. T. Cresson. 



This fine species closely resembles Ich. Orpheua^ but is distinguished 

 at once by the difierent sculpture of the metathorax and the deep vio- 

 laceous wings. 



4. Ich. saucius, n. sp. 



Black ; antennae with a broad white annulus; wings fuscous ; central area of 

 metathorax large, rounded in front and indented behind. 



Female. — Black, shining, closely punctured ; clypeus with large 

 punctures and a large rounded fovea on each side ; antennae short, 

 slightly involute at tip, the 9th to 17th joints white above and beneath, 

 beyond this annulus the joints are rufous beneath. Scutellum flat, 

 polished, with a few scattered punctures; metathorax strongly and some- 

 what confluently punctured, the elevated lines tolerably well defined, 

 the central area large, slightly elongate, rounded in front and deeply 

 indented behind. Wings fuscous, marginal cell darker ; nervures and 

 stigma black; areolet 5-angular. Legs black, shining, the anterior tibite 

 and tarsi in front piceous. Abdomen elongate, densely punctured, sub- 

 opaque, smooth and shining towards the apex; basal segment finely 



