Maladera costigera is a species of beetle of the family Scarabaeidae. It is found in Malaysia and Singapore.
They are brownish-rusty, slightly greenish above. The head is coppery and punctate, and the clypeus is red. The antennae are testaceous-rufous. The pronotum is broad, greenish-brown, and somewhat glossy, as well as punctate. The elytra are silky, brownish-rusty, furrowed, ribbed at the interstices, and punctate everywhere. The legs are brownish-red.