Chromatomyia swertiae (Hering, 1937)
mine
At first a long, tortuous, very fine, interparenchymatous gallery; usually it widens into an upper-surface blotch. Frass in scant, not easily visible, grains. Pupation in the mine, deep in the leaf tissue.
host plants
Gentianaceae, monophagous
Swertia perennis.
phenology
Larvae in July, August.
distribution within Europe
Germany, Poland, Czechia, Lithuania (Fauna Europaea, 2010).
larva
puparium
Yellowish red, oval, segment limits deeply incised.
synonyms
Phytomyza swertiae.
references
Beiger (2005a), Černý, Barták & Vaněk (2009a), Hering (1954a, 1957a), de Meijere (1937a), Pakalniškis (2000a), von Tschirnhaus (1999a).