268a (265b). Pronotum not visible in dorsal view, covered by distinctly arched scutum;

sculpture on thorax often coarse; abdomen like a rudder, on long petiole; marginal vein

usually very long, but sometimes poorly defined; mandibles often sickle-shaped, narrow

(Fig.A ); marginal vein unusually long in some species (Figs.B-E)..Hymenoptera: Eucharitidae.

………………………………………………………………..................…………….(Subfamilies: 269)

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A

B C D E

268b. Pronotum visible in dorsal view, scutum not heavily arched; abdomen usually elongated

and petiole usually not visible (petiolate forms occur) (Fig.A).......Hymenoptera................……............... 270

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A