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1 Hindwing media diverging more than 1.0 midocellus diameter beyond cu-a
2
1 Hindwing media diverging before cu-a or not more than 1.0 midocellus diameter beyond it
3
2 Frons narrower at level of midocellus than shortly below it, omaulus continued ventrally as an acetabular carina, male sternum VIII sword shaped, often exserted
Argogorytes
2 Frons broader at level of midocellus than below it; omaulus continued ventrally only as a fine seam, ending ventrally before midline; male sternum VIII normally concealed, broadly rounded at apex
Ochleroptera
3 Female with two rake setae on fore basitarsus before apex; male without special modifications on last four flagellomeres; spiracular groove present 4
3 Without above combination of characters 5
4 Propodeal enclosure with sculpture or longitudinal ridging, at least along most of anterior sulcus
Sternum
Gorytes
4 Propodeal enclosure without longitudinal ridging or general sculpture except sometimes in anterolateral corners, bounding sulci simple or appearing pitted
Sternum
Pseudoplisus
5 Mesopleuron with no trace of a sternaulus 6
5 Mesopleuron with a complete or incomplete sternaulus
7
6 Clypeus laterally almost a right angle or more often obtuse; mandible bidentate; arolia of female nearly equal on all legs
Sternum
Sphecius
6 Clypeus laterally acute; mandible simple; female foreleg with arolium much larger than on other legs
Sternum
Tanyoprymnus
7 Segment I pedunculate, tergum strongly humped toward apex
Sternum
Psammaletes
7 Segment I sometimes narrowed but tergum evenly curved, not strongly humped towards apex 8
8 Acetabular carina present, distinct and complete
Sternum
Hopsiloides
8 Acetabular carina absent
Sternum
Oryttus
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