Rhyzobius discoidalis is a species of beetle of the family Coccinellidae. It is found in Australia (Queensland, New South Wales).
Description Adults reach a length of about . They have an elongate oval, moderately convex body. They are dark brown to almost black, with the anterior angles of the pronotum pale yellow and the elytra with a pale sutural spot. The antennae are yellowish. The pubescence on the dorsum consists of appresed setae and stiff bristles and forms a wavy pattern on the elytra.
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