Couplet 3
3a: Hind coxa immovably fused to metasternum, completely dividing first ventrite (Figures 26-4, 26-12A); elytra smooth with scattered punctures, microsculptured, simply punctate or striate; body rarely with scales (Adephaga).
3b: Hind coxa free, first ventrite extending entirely across venter behind them (Figures 26-8, 26-12B).
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