ART. 16 WASPS OF THE SUBFAMILY BRACONINAE MUESEBECK 25 



Inner spur of middle tibia not distinctlj' more than half as long as the 

 middle basitarsus; inner spur of posterior tibia distinctly less than half 

 the posterior basitarsus; scutellum very weakly margined at apex; ovi- 

 positor sheaths about, or very nearly, as long as the body 



6. sanctus Say. 



7. First, second, and most of the third abdominal tergites closely evenly striate; 



parapsidal furrows sharply impressed and finely foveolate; face short and 



very broad; abdomen red or testaceous, the first tergite never black S. 



First, second, and third tergites not so completely striate or at least not 

 combining the above characters 9. 



8. Head and thorax black; legs mostly blackish 7. aciculatus (Ashmead). 



Head, thorax, and legs testaceous 8. abdominalis, new species. 



9. Parapsidal furrows completely wanting; mesoscutum with a more or less 



pronounced median longitudinal impression posteriorly; abdomen polished, 

 the first tergite sculptui-eless and without two distinct dorsal longitudinal 

 keels; propodeum smooth, with only a more or less distinct median area; 

 second cubital cell large, subtriangular, sessile; face never rostriform; 

 inner spur of posterior tibia usually distinctly half as long as the basi- 

 tarsus; anterior and middle legs black; posterior coxae and trochanters 



usually black 10. 



Parapsidal furrows usually at least indicated, rarely wanting, and then not 

 exhibiting the above combination of characters 11. 



10. Head and thorax entirely black; wings strongly infumated 



9. rufofemoratus, new species. 

 Head varying from black to mostly ferruginous; thorax yellowish ferruginous, 

 with the pectus sometimes black; wings very weakly dusky 



10. azygos (Viereck). 



11. First abdominal tergite with two more or less prominent widely separated 



dorsal longitudinal keels which arise at the outer margin of the basal im- 

 pression and extend posteriorly; abdomen always red or testaceous; an- 

 terior and middle legs nearly always mostly black or blackish, very rarely 

 (tenuiceps) yellow; metapleura and posterior coxae never evenly granular; 

 parapsidal furrows more often smooth than foveolate, sometimes very 



weak or even wanting; wings usually dark 12. 



First abdominal tergite rarely with such dorsal longitudinal keels, and then 

 the abdomen is mostly black or the basal abdominal tergites, the meta- 

 pleura, and posterior coxae are finely granular; anterior and middle legs 

 very rarely black beyond the trochanters, and then the abdomen is 

 mostly black; parapsidal furrows usually sharply impressed and finely 

 foveolate or punctate; wings often hyaline or nearly 27. 



12. Propodeal spiracles exceptionally large, greatly elongated, slitlike, less than 



their length from the anterior margin of propodeum; antennae 45 to 55 

 segmented; first abscissa of mediella much shorter than the second; ovi- 

 positor sheaths about as long as the abdomen; a large species, usually 7 



to 10 mm. long 11. spiraciilaris, new species. 



Propodeal spiracles normal, round or oval 13. 



13. First abscissa of mediella distinctly longer than the second; nervellus 



strongly angled outwardly at or above its middle and emitting a distinct 

 discoidella from this angle; parapsidal furrows impressed and nearly 

 always finely foveolate; mesopleural furrow foveolate and extending to 

 the middle of mesepisternum or beyond; black, with propodeum, meta- 

 pleura, and abdomen red or reddish testaceous; posterior coxae, tro- 

 •hanters, and femora red 12. simillimus (Cresson). 



