Couplet 16.
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 doubled or forked
[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 doubled or forked