Neodiapterna erichsoni is a species of beetle of the family Scarabaeidae. It is found in Argentina, Brazil (Paraná, Rio Grande do Sul, Santa Catarina, São Paulo) and Paraguay.
Description Adults reach a length of about . The pronotum has large punctures amply distributed on the disc and lateral margins. The posterior angles are obtuse, ending in a subtle but evident backwards projection.
Life history Specimens have been collected in Tapirus and horse feces.
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