Liparetrus karinus is a species of beetle of the family Scarabaeidae. It is found in Australia (Western Australia).
Taxonomy This species belongs to the concolor species group. The defining characters of this group include the absence of setae on the discs of the pronotum and elytra, while the pronotum has a fringe of setae along the anterior margin.
Description Adults reach a length of about . The body is black, with iridescent elytra. The legs are dark reddish brown.
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