Liparetrus obscurior is a species of beetle of the family Scarabaeidae. It is found in Australia (Western Australia).
Taxonomy This species belongs to the striatus species group. The defining characters of this group include the absence of setae on the disc of the pronotum and scales or flattened, adpressed setae on the propygidium and usually also the pygidium.
Description Adults reach a length of about . They are very similar to Liparetrus striatus, but the body and legs are black and the elytra are sometimes dark brown on the disc. Furthermore, the surface is slightly iridescent.
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