Peritrichia pseudopistrinaria is a species of beetle of the family Scarabaeidae. It is found in South Africa (Western Cape).
Adults reach a length of about . They are similar to Peritrichia pistrinaria. They are black. The base of the elytra is black in males and reddish-brown in females. The pronotum of the females has a barely noticeable white border and the elytra in males have white scale-like hairs, instead of scales. In subspecies meridionalis, the ground colour of the elytra of the males is reddish-brown with a black border.