Key to Danish species of Diacheopsis Meyl.

1 Spores medium brown in RL, 15-20 µm Ø, with 1-2 µm long, ± cylindric spines. Capillitium sparse. On bark or lichens. D. mitchellii Nann.-Bremek. & Y. Yamam.
1' Spores dark brown with paler area in RL, with up to 1 µm long spines. Capillitium well developed. On resin filled wounds on trunks of coniferous trees. Diacheopsis sp.