Last modified: Jan. 21, 2020, 3:50 p.m.
First observation for Belgium in 2006 in AN. Nowadays still very rare and more observed in the northern part of the country.
Invasive In Belgium since June 2006.
This North-American species was probably introduced in Europe via The Netherlands (Drenthe, Amersfoort) were many Quercus rubra were planted and where also a US Airforce base is in the vicinity. The Belgian specimen probably are not a result of direct invasion but by dispersal from the Dutch populations. The first Belgian record is from AN, Berchem, 2006-06-05, leg. Leo Janssen. The species has since then spread out slowly in Belgium and the pure white cocoons are sometimes observed in large numbers.
See also bladmineerders.be