Peritrichia pseudursa 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 black and closely related to Peritrichia ursus. The base of the elytra is black or brownish-black in males and dark reddish-brown in females. The pubescence consists of mixed brownish-black and whitish hairs in both sexes.