Couplet 20.

History

[1] Fourth antennal segment never modified; a sexual mod...

[2] Mandibles of ordinary form, short and only slightly ...

[6] Scutellum posteriorly with at most a single, short, ...

[10] Mandibles not forming a beak

[13] Marginalis rarely as long as this and then the radia...

[15] Propodeal keel simple

[17] Radial cell completely closed at apex

[18] Marginalis rarely even equal to its distance from th...

[19] Petiole at most about two and a half times...

[1] Fourth antennal segment never modified; a sexual mod...

[2] Mandibles of ordinary form, short and only slightly ...

[6] Scutellum posteriorly with at most a single, short, ...

[10] Mandibles not forming a beak

[13] Marginalis rarely as long as this and then the radia...

[15] Propodeal keel simple

[17] Radial cell completely closed at apex

[18] Marginalis rarely even equal to its distance from th...

[19] Petiole at most about two and a half times...

marginalis as long or nearly as long as its distance from the basalis and obviously longer than the stigmalis; petiole at least one and a half times longer than its apical width

future couplets

Epomia sharply defined and extendin... ...
Aclista Foerster

Epomia represented at most by a sho... ...
Acropiesta Foerster

marginalis much shorter than its distance from the basalis and not longer than the stigmalis; petiole rarely as much as one and a half times as long as its posterior width. (epomia present or absent; at most a feeble cleft between the antennal sockets; these without a distinct raised rim)

future couplets

Dorsal areas of propodeum with at l... ...
Diphora Foerster

Dorsal areas of the propodeum witho... ...
Pantoclis