The adult sawfly is all black.
Adults and larvae can be seen on plants of the Iris family such as Yellow Flag that grow near to water or in damp conditions.
Adult in late spring and summer.
The larvae feed on members of the iris family, but only on plants growing in damp conditions or near to water. They eat strips from the edge of the leaves.
Seems to be widespread in the southern half of Britain, but less well recorded further north.
Status in Leicestershire and Rutland not known due to lack of records.
Leicestershire & Rutland Map
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