Serica angustatotibialis is a species of beetle of the family Scarabaeidae. It is found in India (Sikkim) and the southern face of the Himalaya in southern Tibet between Sikkim and Bhutan.

Description Adults reach a length of about 9.5-9.8 mm. They have a chestnut brown, elongate body. The upper surface is mostly dull and there are single, erect hairs on the forehead, pronotum and elytra.

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