•194 PROCEEDINGS OF THE ACADEMY OF [1893. 



impressed ; metathorax above and behind with coarse, transverse plicre 

 or rugae, on the metapleune becoming obsolete on lower portion, the 

 upper surface strongly furrowed medially and with the transverse, 

 basal row of fovea? very prominent; legs rather feebly spinose for this 

 sex; pygidial area strongly and sparsely punctured, about one-and- 

 a-half times longer than it is wide at the base, its lateral margins 

 somewhat reflexed. Black ; clothed with sericeous pile, that on sides 

 of face and thorax beneath, silvery in certain lights; last two joints 

 of tarsi only, testaceous; wings subfuscous, darker at apex, iridescent, 

 nervures testaceous ; marginal cell obliquely truncate. Length 

 15 mm. 



Georgia. Easily recognized by coarse sculpture of metathorax 

 and the sericeous pile with which it is clothed. 



7. — Ancistromma conferta u. sp. 



9 . — Anterior margin of clypeus rounded-out, indistinctly dentate 

 laterally; front fine and closely punctured, more sparsely so medially, 

 the medial impressed line rather faint; vertex a little more distinctly 

 punctured than the sides of the front; space between the eyes at top 

 slightly less than the length of auteunal joints 3 and 4 ; antenna? 

 setaceous, but little longer than the head and thorax united, first 

 joint of flagellum nearly one- third shorter than the second; dorsulum 

 finely and very compactly punctured ; scutellum more distinctly 

 punctured, slightly impressed; metathorax above rather indistinctly, 

 transversely striated, the striations most distinct in the strong medial 

 furrow, the metapleura? coriaceous; legs tolerably spinose; pygidial 

 area strongly and sparsely punctured, about one-and-a-half times 

 longer than it is wide at the base, its lateral margins but slightly re- 

 flexed. Black; three, sometimes part of the fourth basal segments 

 of abdomen reddish; tarsi testaceous; wings fusco- hyaline; iridescent, 

 nervures black; marginal cell truncate; face, clypeus and thorax 

 covered with a sparse, sericeous pile ; abdomen with a sparse, silvery 

 pile. Length 10-15 mm. 



$. — Anterior margin of clypeus rounded-out, not dentate later- 

 ally ; front and vertex more coarsely punctured than in the $ ; space 

 between eyes at top about equal to the length of antennal joints, 2-4 

 united ; antenna? shorter than the head and thorax, rather stout, 

 first joint of flagellum about one-quarter shorter than the second ; 

 scutellum impressed ; metathorax above more coarsely sculptured 



