Hydrellia fusca (Stenhammer, 1844)
Whitish, very shallow and irregular corridor; frass scant, irregularly dispersed. Pupation within the mine. Mine in the floating leaves.
Larvae in July (Hering, 1957a).
Not known from the Benelux countries (Fauna Europaea, 2011).
distribution within Europe
From Fennoscandia to Spain and Italy, and from Britain to Bulgaria (Fauna Europaea, 2011).
Hydrellia potamogeti Hering, 1930.
Hering (1930b, 1957a).