Corticolous on Fraxinus or Salix, in old, humid forests (ecology of the two recent localities in Belgium: Lorr.).

Belgium: Ard.: RR (†1884), Lorr.: RR→RRR.

Luxembourg: - .

France: - .

Lit.: L4: 27-28, L6: 144, La66: 286-288, Schl: 161, 254 (probably erroneous).