Nothobranchius ditte, a new species of annual killifish from the Lake Mweru basin in the Democratic Republic of the Congo (Teleostei: Nothobranchiidae)

Nothobranchius ditte, new species, is described from seasonal habitats from the Katate River system in the Lake Mweru basin in the Democratic Republic of the Congo. It belongs to the N. brieni species group, which is characterised by male coloration of anal and caudal fins with proximal portion spotted and with subdistal and distal bands. Nothobranchius ditte is distinguished from all other members of the species group by the unique combination of following characters in males: anal and caudal fins with red-brown spots and irregular stripes proximally, with orange subdistal band and dark brown distal band.