The larvae of the fly Agromyza idaeiana usually mine the leaves of Creeping Cinquefoil (Potentilla reptans) although Occasionally other Potentilla species may be used. It creates a full depth mine without a definite shape and little frass. Some silk is deposited in the mine. The larvae soon leave the mine and continue feeding among spun leaves.
Where the larval foodplants occur.
The leaf mines may be encountered at any time when the larval foodplants are in leaf.
Widespread and thought to be fairly frequent in Britain.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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