The larva of the fly Agromyza albitarsis mines the leaves of various Poplars forming a large greenish blotch mine which turns brown.
Adult: Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.
Mine: Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.
Where the host Poplars occur.
Mines may be found when the host Poplars are in leaf.
The yellow larvae leave the mine to pupate and form a yellow to reddish-brown puparium.
True status in Britain is difficult to determine due to lack of records.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
Enter a town or village to see local records
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015