Phytomyza hoppi Hering, 1925
Very long and narrow, upper-surface, corridor, often with a stellate beginning. The corridor often more or less follows the leaf margin. Finally the corridor turns to the centre of the leaf, widens, and forms a secondary blotch. Frass in rather large and widely dispersed grains. Pupation outside the mine, exit slit in lower epidermis.
Asteraceae, narrowly monophagous
Larvae in June and October (Hering, 1957a).
Not known from the Benelux countries (Fauna Europaea, 2009).
distribution within Europe
Germany, Poland, Switzerland, Austria (Fauna Europaea, 2009).
Beiger (1978a), Černý & Merz (2007a), Griffiths (1976c), Hering (1925a, 1926b, 1928a, 1957a), Huber (1969a), von Tschirnhaus (1999a).