MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 195 

 Prcsacantha pleuralis, sp. iiov. 



9 , Length, 1.5""". Black, opaque, finely rugose, the face smooth, 

 shilling, tlie pleura rufous, the mesonotum with slight indications of 

 furrows posteriorly. Mandibles large, falcate. Antennie 12-jointed, 

 brown-black, the basal half of scape pale; first and second funiclar 

 joints nearly equal in length, the second, slightly the longer, third and 

 fourth joints not minute, fully as thick at apex as the preceding joints, 

 subquadrate. Legs, incliuling coxte, brownish-yellow. Post-scutellar 

 spine rather large, acute, oblique. Wings subfuscous, hyaline at base, 

 the venation brown. Abdomen oblong oval, polished, shining, the first 

 and second segments of an equal length, striated. " 



Habitat. — District of Columbia. 



Types in Coll. Ashmead. 



Described from 2 specimens. 



Prosacantha Liiiellii, sp. nov. 



9 . Length, 2.2™"\ Black; the thorax and scutellum finely rugose, 

 opaque; the head broad, shining, inner orbits and lower part of face 

 coarsely striated, the middle of fac^e smooth, shining, with a few minute 

 punctures, the cheeks with punctate strite. Antennre 12-jointed, brown- 

 black, the scape towards base, brown ; first flagellar joint about twice as 

 long as the pedicel, the latter pale at apex; the second, one-third shorter 

 than the first; third and fourth, transverse. Post-scutellar spine large, 

 triangular. Wings hyaline, the venation pale brownish. Legs, inclu- 

 ding coxae, reddish-yellow. xVbdomen oblong-oval, shining, the first 

 and second segments striated, the third, with some taint striaj toward 

 base. 



Habitat. — Long Island, New York. 



Type in Coll. Ashmead. 



Described from a single specimen obtained from Mr. Martin Liuell. 

 Prosacantha erythropus, sp. nov. 



9. Length, 2.2'"'". Eobust, black, shining, punctate; head very 

 wide, inner orbits, cheeks, and lower part of face, striated ; apical half 

 of scutellum smooth, impunctate; scape, mandibles, and legs, reddish- 

 yellow; flagellum brown-black. Antenna 12-jointed, the flagellum 

 stout; the second funiclar joint one-half longer than thick, and a lit- 

 tle shorter than the first, third and fourth transverse-quadrate. Post- 

 scutellar spine large acute. Angles of metathorax spined. Wings 

 fuscous. Abdomen oblong-oval, shining, the first and second segments 

 and the basal two-thirds of the third longitudinally striated, the rest 

 smooth. 



Habitat.— District of Columbia. 

 Types in Coll. Ashmead. 



Described from two specimens. 



