The Diapriidae

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Couplet 21.
History
   [1] Macropterous species
     [7] Notaulices distinct throughout (except in _Synacra_;...
       [8] Mandibles not forming a beak, the outer side of one ...
         [12] Scutellum normally without any kind of sculpture pos...
           [17] Mandibles of the ordinary form, short and ...
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segment 1 of flagellum enormously lengthened, about as long as the following 7 or 8 segments together

Diphora Foerster

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segment 1 of flagellum of normal appearance and never longer than the following two segments together

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Marginalis very long, at least as l...
Notaulices slightly divergent poste... ... Cinetus Jurine
Notaulices evenly convergent, their... ... Leptorhaptus Foerster
If the marginalis is as long as dis...
Marginalis distinctly longer than i... ... Pantolyta Foerster
Marginalis rarely nearly equal to i...
Pronotal collar on each side with a... ... Acanosema Kieffer
Pronotum rarely with a hollow on ea...
Epomia at least sufficiently well d...
Medial keel of the propodeum forked... ... Belyta Jurine
Medial keel of the propodeum not fo...
Gaster simple in the sense that it ...
Radial cell open at apex, the radia... ... Zygota Foerster
Radial cell closed at apex, the rad...
Petiole at most one and a thirds ti... ... Pantoclis
Petiole fully one and a half times ...
Pronotum elongate, without a vertic... ... Belyta Jurine
Pronotum not elongate, with a more ... ... Aclista Foerster
Gaster remarkably modified, showing... ... Miota Foerster
Epomia absent so that the surface o...
Radial cell completely closed, the ...
Marginalis at least two-thirds as l... ... Acropiesta Foerster
Marginalis at most one-third as lon... ... Pantoclis
Radial cell widely open, the radial... ... Psilomma Foerster
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