Sphyrocallus desertus is a species of beetle of the family Scarabaeidae. It is found in Australia (South Australia).
Description Adults reach a length of about . The dorsal surface of the head and elytra is piceous, while the pronotum, scutellum, tibiae and tarsi are dark brown. The ventral surface is brown and the antennae are pale brown.
Life history Specimens have been collected at night in Acacia and cane grass vegetation at the base of sand dunes.
Etymology The species name refers to the arid nature of the collection localities.
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