"Cyriopagopus hainanus" resembles "C. schmidti", but can be distinguished by its dark black-brown body and the longer "thorns" on the forward-facing (prolateral) side of the maxillae.The carapace (upper surface of the cephalothorax is black-brown, the sternum (under surface of the cephalothorax) is red-brown; and the abdomen is dark brown, with six black stripes running across it and a black stripe down the centre of the upper surface.