Colpochila nigromarginata is a species of beetle of the family Scarabaeidae. It is found in Australia (South Australia).
Description Adults reach a length of about . The pronotum is reddish-black and the elytra are reddish to dark brown. They are similar to Colpochila nitens, but may be distinguished by the shape of the clypeus, the less dense punctuation of the pronotum and the shape of the aedeagus.
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