Liparetrus tristis is a species of beetle of the family Scarabaeidae. It is found in Australia (Western Australia).
Taxonomy This species belongs to the atratus species group. The defining characters of this group include the absence of scales on the clypeus, frons, pronotum and abdomen.
Description Adults reach a length of about . The body is black, with the pronotum and elytra slightly iridescent. The legs are dark reddish brown and the antennae are yellowish brown with a black club.
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