Liparetrus sericeipennis is a species of beetle of the family Scarabaeidae. It is found in Australia (New South Wales).
Taxonomy This species belongs to the dixoni species group. The defining characters of this group include the covering of broad scales on the clypeus, frons, pronotum and abdomen.
Description Adults reach a length of about . The head and pronotum are black, while the abdomen is dark brown and the elytra reddish brown with a black base. The legs are mostly dark brown.
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