Original reference as:
- Linke, Horst. 1999. "Neue Apistogramma-Arten: Apistogramma sp. „Wilhelmi” - eine neue, farblich interessante Art aus dem Apistogramma agassizii-Formenkreis". Das Aquarium. 33(361 7/99):22-26 (crc01519)
Conservation: Apistogramma sp. 'wilhelmi' is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.