MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPIDJi. 195 

 PrcBacautba pleuralls, Hp. nov. 



9 . Length, 1.5""". Bliick, opaque, finely rngo.se, the face smooth, 

 shining, the pleura rutbus, the mesonotum with slight indication's of 

 furrows posteriorly. Man<libles large, falcate. Antennic 12-Jointed, 

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

 joints nearly equal in length, the second, slightly the h)nger, third and 

 fourth Joints not minute, fully as thi(!k at apex as the preceding joints, 

 subquadrate. Legs, in(!luding coxnB, brownish yellow. Post-scutellar 

 8i»ine rather large, acute, oblique. Wings subfuscous, hyaline ;«t base, 

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

 and second segments of an equal length, striated. 



Habitat. — District of Columbia. 



Types in Coll. Ashniead. 



Described from 2 specimens. 



Prosacautha Linellii, sp. nov. 



9 , Length, 2.2""". Bla<;k ; the thorax and scutellum finely rugose, 

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

 coarsely striated, the middle of face smooth, shining, with a few minute 

 punctures, the cheeks with punctate striaj. Antenuie 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. Abdomen oblong-oval, shining, the first 

 and second segments striated, the third, with some faint strise toward 

 base. 



Habitat. — Long Island, New York. 



Type in Coll. Ashmo- d. 



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

 Prosacantha erythropus, sp. uov. 



9. Length, 2.2'""'. Robust, 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. Antennae 12-jointed, the flagellum 

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

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

 SL'utellar 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. 



