On bark of deciduous trees in forests (e.g. Acer, Fraxinus, Quercus), or on isolated trees (e.g. Populus, Ulmus), also on Crataegus and Hedera, in Luxembourg: Lorr. always with E. hutchinsiae.

Belgium: Mar.: RRR, Fl.: RRR, Brab.: RR, Mosan: RR, Ard.: RRR.

Luxembourg: Lorr.: RR.

France: Mar.: RR, Boul.: AC, Pic.: R, Brab.: RR (1910).

Lit.: BDL1: 219-220, Boul.: 68, L3: 30-31, L8: 29-30, NL84: 14, Ertz & Duvivier (2006: 48).