Platycypha lacustris, also known as forest jewel, is a species of damselfly in the family Chlorocyphidae.

It is found in forest of Sub-Saharan Africa in Cameroon, the Democratic Republic of the Congo, Kenya, Tanzania, Uganda, and Zambia.

[1][2] Its lives around rainforest streams.

It is a widespread species that can be threatened by habitat loss.

This article related to Calopterygoidea is a stub.