MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 115 

 Megaspilus ambiguus sp. nov. 



$ 9. Leno-tli, 1.2 to 1.(5""". Black, sliiiiin<i', (iiiely alutaceous; scape 

 and legs brownish-yellow. The posterior coxa; black basally. In the $ 

 the prosternum and the collar laterally are yellow. Mandibles and 

 palpi pale. Antenna? 11-jointed, in 9 the llagellnni tiagellate, the 

 pedicel and first flagellar joint of an equal lengthy the following to the 

 last only slightly longer than thick, the last joint two and a half times 

 as long as thick; in the S filiform, the flagellnni black, pubescent, the 

 pedicel and the first flagellar joint together distinctly shorter than the 

 scape; the first joint of the flagellum is not more than 4 times as long 

 as thick, the second shorter, the following to the last nearly equal, a 

 little less than thrice as long as thick, the last joint about one-fourth 

 longer than the penultimate. Wings hyaline, very faintly tinged with 

 fuscous, the stigma brown, the stigmal vein two and a half times 

 the length of the stigma. 



Habitat. — Arlington, Va., and Washington, D, C. 



Types ^ 9 in Coll. Ashmead. 



Described from several specimens taken by Schwar?, Pergande and 

 myself. 



The species is closely allied to M. hvviceps, but it is slightly larger, 

 with a fine alutaceous sculpture, and with a difference in the relative 

 length of the anteunal joints. 



Megaspilus striatipes sp. uov. 



(PI. VI, Fig-. 7, $.) 



9 . Length, 1.4'"'". Black, shining; vertex of head and thorax very 

 faintly shagreened, the face smooth and highly polished. Scape and 

 legs brownish-yellow, the posterior femora and tibiic with a fuscous 

 streak above. Antennie 11-jointed, the flagellum flagellate, stout, 

 black, a little more than twi(;e the length of the scape; the scape is 

 long, extending beyond the ocelli; the pedicel is much shorter than 

 the first flagellar joint; the latter is much longer and slenderer than 

 the second; remaining joints widening, but still all a little longer than 

 thick, the last very slightly longer than the penultimate. Wings fus- 

 cous, the stigma large, brown, the stigmal vein less than twice the 

 length of the stigma. 



Habitat. — Ottawa, Canada. 



Tj^lie 9 in Coll. Ashmead. 



Described from a single specimen received from Mr. W. Hague 

 Harrington. 



Megaspilus Schwarzii sp. nov. 



9 . Length, 1.8'""\ Black, shining, very finely shagreened, the scutel- 

 lum smooth; scape and legs brownish-yellow; the propectus piceous. 

 xVntennjB 11-jointed, the flagellum brown-black, about two and a half 

 times as long as the scape, the i^edicel as long as the first flagellar joint, 

 the latter the narrower, the following joints to the last, a little shorter, 



