22 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



9. Second abdominal tergite provided with two longitudinal furrows medially ; 



scutellum ahvays sculptured, ovipositor sheaths hardly protruding- _10. 



Second abdominal tergite uniformly rugose, without such longitudinal 



furrows medially ; scutellum smooth, usually polished ; ovipositor sheaths 



usually projecting at least half the length of the abdomen 13. 



10. I'ropodeum and the two basal abdominal tergites smooth and shining, with 



only a few weak scattered punctures; third tergite wholly smooth and 

 polished; mesoscutum and scutellum with distinct separate punctures, 



and shining ^ 9. schizurae, new species. 



Propodeum and the two basal abdominal tergites, with usually part of the 

 third, rugulose or closely punctate; mesoscutum and scutellum usually 

 confluently punctate and opaque 11. 



11. Part of the second abdominal tergite and the following tergites almost 



entirely, reddish-testaceous; stigma yellow, somewhat paler at base; all 



coxae wholly testaceous 10. auripes Provancher. 



Dorsum of abdomen mostly black; if partly testaceous posterior coxae 

 are black on basal half 12. 



12. Posterior coxae wholly reddish-testaceous; longitudinal grooves on second 



abdominal tergite parallel and very close together, inclosing an exceed- 

 ingly slender embossed area, which is scarcely more than a carina; 



dorsum of abdomen black 11. brevicauda Provancher. 



Posterior coxae black on basal half; the longitudinal grooves on second 

 tergite widely separated at base of tergite, converging posteriorly. 



12. facetosa Weed. 



13. Propodeum horizontal, not declivous; mesopleurae with a very narrow, 



finely crenulate longitudinal furrow ; apical segment of tarsi very large ; 

 inner spur of middle tibiae hardly as long as middle metatarsus; all coxae 



reddish-testaceous; length about 5 mm 13. rubricoxa Provancher. 



Propodeum always strongly declivous; mesopleurae never vdth a crenu- 

 late furrow; inner spur of middle tibiae distinctly at least as long as 



middle metatarsus- 



14. 



14. The fore and middle coxae, and at least the apex of posterior coxae, 



testaceus; or, if all coxae are brownish-black (rarely, in hriUoni 

 Viereck), then the A^enter of abdomen and most of the dorsum beyond 

 second tergite are bright testaceous ; tegulae nearly always yellow— 15. 

 All coxae black, rarely apex of all coxae testaceous ; dorsum of abdomen, 

 and usually the venter, black; tegulae usually back 19. 



15. Face with distinct, separate, large punctures, not rugulose ; third abdominal 



tergite wholly smooth; posterior femora short, hardly longer than hind 

 coxae; all coxae and most of the dorsum of abdomen beyond second 

 tergite, testaceous; ovipositor sheaths projecting much less than half the 



length 'of the abdomen 14. melligaster Provancher. 



Face finely ruguloso-punctate, the punctures not separated; third ab- 

 dominal tergite usually distinctly somewhat punctate or striate on 

 basal half 1^- 



16. Anterior wing with the third cubital cell and the region behind it subhyaline 



or slightly fuliginous; usually part of the dorsum of abdomen and the 



entire venter testaceous ^^• 



Anterior wing entirely clear hyaline ; dorsum of abdomen and apical third 

 of venter black }*• 



17. Stigma not distinctly twice as long (measured along the anterior margin) 



as its greatest breadth, and with a conspicuous pale spot at base ; pos- 

 terior coxae wholly testaceous; ovipositor sheaths broadest near the 

 middle, narrowing somewhat toward the apex from this point. 



15. harnedi, new species. 



