Fruiting body a sporangium or plasmodiocarp, sessile, scattered to clustered. Peridium generally persistent, thin, membranous, usually iridescent. Hypothallus a thin sheath surround the fruiting body, usually reddish brown. Columella absent. Capillitium highly variable, arising from the base of the fruiting body, branching and anastomosing to form a loose or dense network. Spores dark.
Diacheopsis is a rare and poorly known genus that contains 17 species (Lado 2001). None of these is particularly common and several are known only from the type collection. Two species have been reported from New Zealand. It should be noted that the only real difference between Diacheopis and a sessile Lamproderma is the presence of a columella in the latter. Moreover, the limeless sporangia sometimes produced by members of the order Physarales can mimic a Diacheopsis very closely (Kowalski 1975). Both of these facts should be taken into consideration when making an identification of what appears to represent a member of this genus.