Handbook of Nearctic Chalcidoidea

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Fore & midcoxae separated (midcoxa posterior to midpoint of mesopleuron; if questionable, than prepectus is inflated); axillae (ax) usually not meeting medially (if so, at least as long as wide); marginal vein longer than stigmal or postmarginal vein; cercus at apex of metasoma.

Fore & midcoxae nearly touching (midcoxa anterior to middle of mesopleuron); axillae (ax) meeting medially, wider than long; marginal vein usually shorter than stigmal or postmarginal vein; cercus anterior to apex of metasoma.