438 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



without a pronounced depression; scapulae not transversely 



rugose; scape and tegulae reddish violacea Ashmead 



8. Length nearly 5 mm. ; antennal groove dilated suddenly at bot- 



tom ; pleura with the lower and posterior portion striated ; 

 coxae closely sculptured (from original description only). 



stramineipes Cameron 

 Less than 5 mm. in length and not agreeing otherwise with 



above description 9 



9. Thorax very finely and irregularly rugulose, not distinctly 



alveolately sculptured ; hindcoxae very nearly smooth and 

 testaceous or fuscotestaceous ; scutellum without lateral 



grooves 10 



Thorax with distinctly alveolate sculpture; hindcoxae metallic 

 and distinctly sculptured at least dorsally ; scutellum with 

 more or less distinct lateral grooves 11 



10. Face very nearly smooth; propodeum more weakly sculptured 



than scutellum and with a delicate median longitudinal carina. 



minutlssima Howard 

 Face distinctly sculptured, only the clypeus sometimes nearly 

 smooth; propodeum more coarsely sculptured than scutellum 

 and without median carina smithi Howard 



11. Scutellum with a broad shallow depression down middle and 



with lateral grooves broad, strongly foveated, and nearly 

 dorsal ; transverse furrow on scutellum also broad and 

 strongly foveated ; abdominal petiole at least as long as hind- 

 coxae 12 



Scutellum without a median depression and with lateral 

 grooves less prominent and lower down on sides of scutellum ; 

 transverse furrow on scutellum either weak or strong; ab- 

 dominal petiole usually shorter but occasionally as long as 

 hindcoxae 14 



12. All femora on basal half or more metallic or strongly infuscated ; 



propodevim with nearly uniform alveolate sculpture overlaid 

 medially with some irregular rugulae; supraclypeal area as 

 long as broad and equaling or slightly exceeding clypeus in 



length beameri, new species 



All femora pale testaceous; propodeum in part alveolately 

 sculptured but medially with a somewhat irregular median 

 carina separating two rows of shallow pits or foveae; 

 supraclypeal area a little shorter than clypeus and a little 

 broader than long 13 



13. Pits on propodeum large; general color bright brassy green; 



abdomen including petiole brassy green aureoviridis, new species 



Pits on propodeum smaller; general color olive-green with the 

 propodeum, more or less of pleura, and sutures on dorsum of 

 thorax purplish; abdomen including petiole purplish black, 

 gaster with strong violaceous tints simulatrix, new species 



14. All femora testaceous or pale yellowish 15 



All femora metallic or at least distinctly infuscated 16 



15. Abdominal petiole very slightly longer than broad, distinctly 



shorter than hindcoxae ; mesepimeron smooth and shining on 

 its upper half neomexicana, new species 



