Diederimyces is a genus of fungi in the family Verrucariaceae.[1] A monotypic genus, it contains the single species Diederimyces fuscideae.
The genus name of Diederimyces is in honour of Paul Diederich (b.1959) Luxemburg born mathematician and botanist (Mycology and Lichenology).[2]
The genus was circumscribed by Javier Etayo Salazar in Nova Hedwigia Vol.61 (1-2) on page 190 in 1995.