496 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



104. Posterior coxae dull and very coarsely punctate or granular on the outer 



face; spurs of the hind tibiae about equal in length and never longer 

 than half the metatarsus, usually distinctly shorter; first and second 

 abdominal tergites entirely, and sometimes the third in part, rugose, 

 the first broadening gradually from base to apex, the second broad with 

 the sides parallel ; radius of forewing not longer than transverse 



cubitus 105. 



Posterior coxae not coarsely granular on outer face; or at least not the 

 above combination of characters 112, 



105. Third abdominal tergite more or less roughened, at least somewhat granu- 



lar, on the basal third or half; if practically smooth, as in some male 

 specimens, then either the antennae are mostly bright yellow, or the 

 hind femora are blackish; stigma normal, and distinctly shorter than 



the metacarpus 106. 



Third abdominal tergite smooth and polished ; rarely, with fine striulae 

 basally in the middle, and then the stigma abnormally large, a little 

 longer than the metacarpus ; male antennae always black ; hind femora 

 always pale 108. 



106. Fore and middle coxae yellow ; tegulae yellowish or pale brown ; usually 



more or less of the third and following abdominal tergites, and the 



entire venter of the abdomen, reddish-yellow 105. scitulus Riley. 



All coxae black ; teguhie blnck ; venter and sides of the abdomen at least 

 black on the apical half 107. 



107. Posterior femora stramineous, with only the extreme apex dusky ; male 



antennae largely yellow 106. xylinus (Say). 



Posterior femora black, or reddish-brown edged above with blackish ; 

 antennae of both sexes black 107. yaJcutatensis Ashmead. 



108. Tegulae and fore and middle coxae yellow; third abdominal tergite en- 



tirely bright yellow 108. cramU Weed. 



Tegulae blackish; third abdominal tergite at the most reddish-yellow lat- 

 erally 109. 



109. Venter of the abdomen mostly black ; disk of scutellum smooth, impunctate 



and highly polished 111. 



Venter of the abdomen mostly yellow or testaceous; scutellum with .some 

 shallow, but distinct, punctures; third and often the following tergites 

 of the abdomen testaceous laterally 110. 



110. Stigma very large, very pale brown, transparent, a little longer than the 



metacarpus; hind femora and tibiae fuscous at extreme apex; posterior 

 coxae closely punctate on outer face ; third abdominal tergite often with 



some striulae basally in the middle 109. phithypenae, new species. 



Stigma moderate, a little shorter than the metacarpus; hind femora en- 

 tirely pale testaceous, not at all fuscous at apex ; posterior coxae coarsely 

 granular on the outer face 110. autoprapliae, new species. 



111. Abdomen short, broad-ovate ; the posterior margin of the second abdominal 



tergite curving forward somewliat at the sides; basal segments vf the 



antennal flagellum in the female pale 111. griffini (Viereck) in part. 



Abdomen more elongate; the posterior margin of the second abdominal 

 tergite usually straight ; antennae in both sexes wholly black. 



112. laeviceps Ashmead. 



112. First abdominal tergite witli base and apex apparently of equal 



breadth, the sides parallel, or bulging somewhat; fir.st and second ter- 

 gites, and usually the tliird at base, rugose and dull; inner spur of hind 

 tibiae not longer than half the metatarsus; ovipositor sheaths often pro- 

 jecting almost llio ienglh of the 'irst abdominal tergite 113. 



