Phyllonorycter chrysella (Constant, 1885)
Not unusually large, lower-surface tentiform mine with many very fine length folds, always in an axil of midrib and side vein. The mine causes the leaf to contract strongly. Pupation within the mine. Before ecdysis the pupa works itself half out of the mine through its uperside.
Alnus glutinosa, incana.
Not known from the Benelux countries (Fauna Europaea, 2009).
distribution within Europe
Southern France, Spain, Italy (Deschka, 1970a; Fauna Europaea, 2009).
Described by Deschka (1970a). Abd7 ventrally without a group of spines. Cremaster with but one pair of spines; they are stout, on a broad base and curved outwards. The pupa rather resembles the one of Ph. froelichiella.
Deschka (1970a), Hering (1947a, 1957a).