Chromatomyia syngenesiae and Chromatomyia horticola are leaf mining flies which form mines on a large number of plant species, these mines are indistinguishable from each other. They are treated as an aggregate, and together these comprise Chromatomyia atricornis.
Around thistles and other members of the Asteraceae family as well as mint and other plants.
Peak time is May to September.
UK status not known but thought to be common and widespread.
Status in Leicestershire and Rutland not known but thought to be common and widespread.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015