Phytomyza ptarmicae Hering, 1937
Very long lower-surface corridor; only the very last section is upper-surface. Frass in widely spaced grains. Pupation outside the mine.
Asteraceae, narrowly monophagous
Achillea grandifolia, ptarmica.
From June on, in two generations (Hering, 1957a).
Not known from the Benelux countries (Fauna Europaea, 2009).
distribution within Europe
From Sweden and Finland to Germany and Slovakia (Fauna Europaea, 2009).
Andersen (2013a), Andersen & Jonassen (1994a), Černý (2007a), Černý, Vála & Barták (2001a), Hering (1937a, 1954a, 1957a), Pakalniškis (1993a), Spencer (1976a).