Peritrichia proboscidea 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 in form and colour to Peritrichia capicola. Males are black with pure black or reddish-brown, black-edged elytra, while females are uniformly reddish-brown. The elytra have hairs and white scales in the lateral and apical areas. The pygidium is covered with white hairs.