Maladera diyalumana is a species of beetle of the family Scarabaeidae. It is found in Sri Lanka.

Description Adults reach a length of about 8.4 mm. They have a dark reddish brown, oval body, with yellow antennae. The dorsal surface is dull and densely and finely setose.

Etymology The species is named after the type locality, Diyaluma Falls.

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