| Posterior smooth band of the scutellum interrupted centrally by sculptured area | most, with varying degree | no | no | yes | no |
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| Fore wing vein R1 shorter than pterostigma | yes | no* | no* | yes | yes |
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| Propodeum sculpture | mostly sculptured (with exceptions) | variable, ranging from entirely smooth propodeum to coarsely sculptured | variable, ranging from entirely smooth propodeum to coarsely sculptured to areolated | mostly coarsely sculptured | variable, ranging from rugose with irregular median carina to smooth and shiny |
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| Lower margins of the eyes converging | most | few | few | no | slightly |
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| Posterior tergites posteriorly desclerotized | most | few | few | no | no |
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| Vannal lobe shape & setosity (Apanteles / Dolichogenidea) | convex and setose [but rarely straight and bare, e.g., I. kostylevi] | convex or slightly straight, and entirely setose* | concave to slightly, without setae or very few, small and scattered setae | convex and setose | convex and setose |
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| Notauli relatively well defined (Rhygoplitis) | no | no | no | yes | no |
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| Median carina on propodeum (Napamus) | some | no | no | yes | yes/some |
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| Mouth parts elongate (Napamus) | some | few | few | no | yes |
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| Inner metatibial spur much longer (1.3 ×) than the outer spur (Napamus) | no | no [sometimes inner spur longer but less than 1.3 ×] | no [sometimes inner spur longer but less than 1.3 ×] | no [rarely inner spur longer but less than 1.3 ×] | yes |
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| Wings strongly infumate (Napamus) | no | very few | very few | no | yes |
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