Plectris squalida is a species of beetle of the family Scarabaeidae. It is found in Brazil (Santa Catarina).
Adults reach a length of about 10 mm. They are brown and somewhat glossy. The upper surface is very sparsely pubescent. The pronotum has a few short setae, as do the base, the hind angles, and (on the elytra) the sides and the sutural stria. The underside of the thorax is covered with long pubescence.