Maladera muscula is a species of beetle of the family Scarabaeidae. It is found in Cambodia and Thailand.
Adults reach a length of about 5 mm. The upper and lower surfaces are dark reddish-brown, dull and tomentose. The clypeus is shiny and the antennae are light brown. There are a few setae beside the eye margins and on the sides of the pronotum, elytra, and at the tip of the pygidium. The rest of the upper surface is glabrous.