402 Dr. A. S. Packard, Jr's Revision of the 



deum convex, somewhat tumid, covered with a fine net-work of irre- 

 gular rugae, not so coarse as in the preceding species, and covered with 

 denser pile than in the other species. Tegulae testaceous, insertion 

 of wings fuscous and piceous, wings clear iridescent. Femora black, 

 fore tibiae reddish ; all the tarsi uniformly testaceous, reddish, slightly 

 sericeous; extreme base of hind tibiae reddish, remainder black; tibial 

 spurs concolorous with the tarsi. Pedicel of the abdomen grooved 

 above ; laterally, smooth and polished, as is the abdomen itself, the tip 

 of which is broad spatulate, surface plain, not grooved as in P. niger. 



Length of the body, .20 inch. 



Illinois, (Coll. Ent. Soc. Phil.). 



Its reddish antennae, its bronzen front when seen in certain lights, 

 the reddish under side of the antennae, reddish fore tibiae, and puncto- 

 lineated mesoscutum, and the much shorter head, narrower transversely 

 Avith a more convex vertex, more prominent ocelli, and its plain spatu- 

 late abdominal tip will sufficiently distinguish this species from the 

 preceding. 



Psen fuscipes, n. sp. 



9 . Head broadly transverse, vertex elevated and convex, very 

 minutely punctured on the vertex, which is smooth and polished, with 

 a well marked prominence between the insertion of the antennas; front 

 broad, with an unusually deep golden dense pubescence, darker at base 

 of the clypeus ; antennas with the scape black, flagellum pale reddish 

 beneath, black-brown above, tip reddish above. Prothorax well crested, 

 pubescent behind; meso-scutum minutely punctured, polished; mesial 

 and submesial impressed lines distinct, meta-scutellum minute ; propo- 

 deum with about six fine ruga) on the enclosure on each side of the well 

 marked mesial line, which is distinctly lozenge-shaped, posteriorly inte- 

 rupted by three high distinct ridges, and still more posteriorly with dis- 

 tinct, though rather fine lines, diverging from the mesial furrow, hir- 

 sute. Tegulee testaceous, nervures with ferruginous uervures, paler 

 than usual. Femora brown, sericeous, fore and middle pairs tipped 

 slightly with ferruginous; tibiae concolorous with the femora; tarsi 

 pale fuscous, thickly pubescent ; hind tarsi concolorous with the fore 

 tarsi. Body of the abdomen longer than the head and thorax together, 

 being unusually long and slender, ovate lanceolate, pedicel nearly as 

 long as abdomen is wide, grooved deeply laterally, highly polished ; 

 abdomen with the rings slightly coarctate, sutures well impressed, 

 hind edge of 2d, 3d and 4th rings obscurely and narrowly blood red ; 

 tip acute, with a narrow, long, subtriangular, well marked flattened 

 surface. 



