Agromyza anthracina is a fly whose larvae mine the leaves of Common Nettle. The mine usually starts away from the leaf edge and has a coiled intestine like start; it has frass in long threads in the broader part of the mine. The mine is seen more often than the fly.
Where Common Nettle occurs.
June and July.
Widespread in England but not well recorded.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015