Terricolous, in sand dunes, or corticolous on well-lit trees in forests or at their edge.

Belgium: Mar.: RRR (†1917), Ard.: RR (†<1900), Lorr.: RRR (†1963).

Luxembourg: - .

France: Mar.: RRR (1996), Pic.: RRR (1972).

Now extinct throughout the area of study.

Lit.: L4: 19, La66: 453-454, Vanbrugghe et al. (2002).