Agromyza nana is a fly whose larvae mine the leaves of various clovers. The mines have a short, broad gallery leading to a conspicuous, roundish white blotch in the centre of the leaf. The blotch is on the upper surface with some deep areas often containing frass.
Wherever the host plants grow.
The mine can be seen in late summer and autumn.
Widespread and fairly frequent in Britain.
Fairly frequent in Leicestershire and Rutland.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015