136 [January 



Pelopoeus argentifrons. n. sp. 



Black ; face silvery ; two spots on prothorax above, a spot beneath anterior 

 wings, another behind posterior wings, scutellura, a small line on postscutellum, 

 two spots at tip of metathorax, and posterior margin of first segment of abdo- 

 men, yellow ; wings hyaline, dusky at tips. 



Female. — Deep opaque black, the head and thorax clothed with a 

 rather long whitish pubescence, more dense beneath; face and clypeus 

 bright silvery, the latter eniargiuate at tip, the anterior margin de- 

 pressed and shining; antennae entirely black, subsericeous. Thorax 

 closely and finely punctured, and when examined under a powerful lens. 

 the surface is covered with fine irregular longitudinal striae, inter- 

 spersed with deep punctures, and the interstices densely and minutely 

 punctured ; two small transverse lines on the prothorax above, an elon- 

 gate snot on each side of the pleura anteriorly connected with a small 

 spot between it and the tegulaa, a large transverse spot on the scutel- 

 lum, a narrow, nearly obsolete, transverse line on the postscutellum, a 

 round spot on each side at the. base of the metathorax. and two others 

 at the extreme tip, all yellow ; scutellum smooth and shining on the 

 disk; metathorax covered with dense, minute, transverse striae, and 

 with a fine, dense, whitish, sericeous pile, glittering in certain lights, 

 the dorsal middle is prominent, with a broad, longitudinal, central 

 channel; tegulae black, highly polished. Wings hyaline, the tip, as 

 well as the costal half of the marginal cell, fuliginous; nervures black. 

 Legs entirely black, covered with a very fine glittering pile. Abdomen 

 shining black, the first segment with the apical margins obscure yel- 

 lowish, dilated on the extreme sides, narrow and slightly interrupted 

 on the dorsal middle. Length 10 lines; expanse of wings 15 lines. 



Collection. — Ent. Soc. Philad. One specimen. 



This may be the P. axxlmllis of Dahlbom, but his description is too 

 meagre to decide. 



Genus PODIUM, Fabr. 

 Podium fulvipes, n. sp. 



Black, opaque; mandibles, tegulse and legs, fulvous; abdomen polished: 

 wings hyaline, their apical fourth fuliginous. 



Female. — Black, opaque or subopaque, thinly clothed with rather 

 long, fine, pale pubescence; face slightly silvery; mandibles long, slen- 

 der, acute, fulvous or rufo-fulvous, shining, the extreme tips blackish; 

 palpi pale fulvous; antennae rather slender, black or piceous-black. 

 Thorax black, with a faint tinge of blue, and finely punctured; scutel- 

 lum flat, shining; metathorax elongate, very densely punctured, with 

 a deep, central, longitudinal furrow, which is covered, as well as the 

 narrow basal and apical margins, with bright glittering pile ; tegulaj 



