Ptochomyza mayeri (Spencer, 1966)
Very narrow, whitish upper-surface corridor that starts somewhere on the leaf and descends towards the leaf base; from here a few short branches reenter the leaf disk, but in the end the corridor goes down throught the petiole into the pith of the stem, where the larva continues as a stem borer.
Ranunculaceae, narrowly monophagous
Clematis flammula, recta.
Larvae in early August (Hering, 1967a).
Not known from the Benelux countries (Fauna Europaea, 2009).
distribution within Europe
Austria, Italy (Fauna Europaea, 2009).
larva & puparium
See Hering (1957a)
Hering (1957a, 1958a, 1967a), Spencer (1966a), Süss (1979a).