MONOGRAl'll OF THK Noimi AMKKICAN PKOC'TOTUYIMD.E. 115 



Megaspilus ambiguiis >\t. nm . 



^ 9. Lcnjytli, 1,2 to 1,(1""". Hltn-k, sliiniiijn, rmcly iiliitiircous; scai>o 

 and l(';;s biuw iiisli-vfllow. Tlio postcridir.oxa' black basally. In tlu' ^ 

 the iHostciiiuni and Unt collar laterally are yellow. Mandibles an«l 

 palpi ])ale. Antemue ll-joint<'d, in 9 tlu^ tla^elbun lia^^elJate, the 

 ]»edicel and first llajjellar joint of an cipnil leii<>ili. the tollowin;^- to tlie 

 last only slightly l<»n<;er than thick, the last joint two and a half times 

 as loMj;' as thii'k; in the c? Illiforni, the tlaj^ellnni black, jiubescent, the 

 jiedicel ami the tirst tla<;ellar Joint toji'cther distinctly shorter than the 

 seai»e; the first joint of the tlaj;ellnin is not uioiv^ than 4 times us long 

 as thick, the second shorter, tin' followin;^' to the last nearly equal, a 

 little less than thrice as lonj; as thick, the last joint abont one-fourth 

 ionyer than the penultinnite. Wings hyaline, very faintly tinged with 

 fusc<>ns, tlu> stigma brown, the stigmal vein two and a half times 

 the length of the stigma, 



IIAIJITAT, — Arlington, V^a., and Washington, I), (J. 



Types 5 9 in Coll. Ash mead. 



Described from several specimens taken by Schwarz, I'ergandc^ and 

 myself. 



The species is closely allied to ,1/. Itcrirrps, but it is slightly larger, 

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

 length of the antennal joints. 



Megaspilus striatipes s\t. nov. 

 (PI. VI, Fijr. 7, 9.) 



9 . Length, 1,4"'"'. Black, shining; vertex (»f head and thorax very 

 faintly sbagreen«'d, the face smooth and liighly polished. Scape and 

 legs brownish-yellow, the posterior femoia and tibia' with a fuscons 

 streak above. Anteunai 11-jointed, the tlagj'llum Hagellate, stout, 

 black, a little more than twice the length of the scape; the scape is 

 long, extending beyond the ocelli; the i)edicel is much shorter than 

 the tirst 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, AVings fus- 

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

 hmgth of the stigma. 



Habitat. — Ottawa, Canada. 



Type 9 in Coll. Ashmead. 



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

 llarringtou. 



- Megaspilus Schvrarzii sp. nov. - -^ 



9 . Length, 1.8"'"', Bla<'k, shining, very finely shagreened, the scutel- 

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

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

 times as long as the scape, the pedicel a's long as the first flagellar joint, 

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



