The one-and-a-half-stripe hap (Protomelas insignis) is a species of cichlid endemic to Lake Malawi where it prefers rocky areas.

It is an egg-eater, seeking out and consuming the eggs of other fishes.

This species can reach a length of 20.3 centimetres (8.0 in) TL.

It can also be found in the aquarium trade.

This Cichlidae-related article is a stub.