Maladera kostali is a species of beetle of the family Scarabaeidae. It is found in India (Tamil Nadu) and Sri Lanka.
Adults reach a length of about 6.5âÂÂ6.9 mm. They have a reddish brown, oblong-oval body, with the elytra slightly lighter and the antennae yellowish. The dorsal surface is mostly dull and nearly glabrous, except for a few short setae on sides of the elytra.
The species is named after one of its collectors, Mr. Kostal.