194 BULLETIN 15, UNITED STATES NATIONAL MUSEUM. 



Prosacantba fuscipeuuis Aslim. 

 Ent. Amer., iii, p. 117; Cress. Syn. Hym. p. 313. 



$. Length, 2.2'"'". Robust, black; tliorax and scutellum coarsely 

 rugoso-punctate, opaque; head large, broad, shiuing, vertex polished, 

 the froiis and face coarsely, longitudinally striate. Antennte 12-jointed, 

 long, filiform, brown-black, the scape towards basal half rufous; first 

 flagellar joint the longest, the third, the shortest and emarginated at 

 base; the joints after the third longer, very slightly increasing in 

 length to the last. Legs rufous, the hind coxse sometimes black. 

 Post scutellar spine large, triangular, acute. Wings fuscous or sub- 

 fuscous, the marginal vein nearly six times as long as the stigmal. 

 Abdomen oblong- oval, polished, the first and second segments coarsely 

 longitudinally striated, the third feebly longitudinally striated, the 

 following smooth. 



Habitat. — Jacksonville, Fla. 



Types in Coll. Ashmead. 



Prosacantba columbiana, sp. nov. 



9 . Length, 2.2'"°'. Black, shining, sparsely, faintly, minutely punc- 

 tate; the head polished, lower part of orbits, on either side of the in- 

 sertion of the antenna^ and cheeks, striated. Mandibles reddish-yellow. 

 Antennte brown-black, the basal half of scape and tubercles pale rufous; 

 first and second joints of funicle of an equal length, twice the length of 

 the pedicel, the third and fourth transverse. Legs, including coxa?, 

 brownish-yellow. Post-scutellar spine acute, triangular; metapleura 

 smooth, polished. Wings subfuscous, hyaline toward base. Abdomen 

 oblong-oval, polished, the first and second segments coarsely striated, 

 the third more or less striated basally, and the rest of the segments 

 smooth, impunctured. 



HABITAT. — District of Columbia. 



Types in Coll. Ashmead. 



Prosacantba bilineata, sp. nov. 



9 . Length, 1.5'"'". Black, shining, the thorax, excluding the scutel- 

 lum, minutely punc^tulate, with indications of furrows posteriorly ; head 

 highly pohshed, impunctate, with some strife toward the mouth. Man- 

 dibles piceous. Antennte 12-jointed, black, the extreme base of scape 

 reddish; first fuuiclar joint not quite twice as long as the pedicel, 

 the second, a little shorter, third and fourth, small, transverse. Legs, 

 including coxte, pale rufous. Post-scutellar spine very acute. Meta- 

 thorax with small acute teeth at the i)osterior angles, the metapleura 

 crenulate. Wings hyaline, the venation yellowish. Abdomen oblong- 

 oval, smooth, shining, the first segment and the second at btise, striated. 



Habitat. — Washington, D. C. 



Type in Coll. Ashmead. 



Described from 4 specimens. 



