Comaserica picticollis is a species of beetle of the family Scarabaeidae. It is found in Madagascar.
Adults reach a length of about 5.6 mm. They are tomentose, silky-glossy, with sparse setae on the pronotum and elytra. The pronotum is yellowish with a greenish spot in the middle, and the elytra deeply ribbed. The pronotum is broad, with a fine row of setae behind the anterior margin, the surface finely and sparsely punctate, the spot roughly M-shaped. The ribs of the elytra are smooth, the rows finely punctate.