Monochroa rumicetella (O. Hoffmann, 1868)
Large full depth blotch, that in R. acetosella may occupy almost the entire leaf. In R. acetosella the frass is concentrated in the leaf tip, in R. acetosa on the midrib. Pupation external (Hering, 1957a).
Rumex acetosa, acetosella.
Mainly on R. acetosella (Hering, 1957a).
Larvae in July, August (Hering, 1957a).
Not known from the Benelux countries (Fauna Europaea, 2010).
distribution within Europe
From Fennoscandia and Belarus to Portugal, the Alps, and Greece, and from France to Romania (Fauna Europaea, 2010).
Red (Skala, 1950a).
The related M. sepicolella has long been a forgotten species, and it is well possible that the desription above, and references below, partly refer to that species.
Elsner, Huemer & Tokár (1999a), Klimesch (1958a), Leutsch (2011a), Maček (1999a), Schütze (1931a), Skala (1950a), Surányi (1942a), Szőcs (1977a).