Last modified: Nov. 23, 2024, 12:38 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) where many Quercus rubra were planted, and where also a US Airforce base is in the vicinity. The Belgian specimens are probably 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.
Adults are on the wing from early April towards early October.