The larvae of the midge Ametrodiplosis thalictricola cause galls on the fruits of Common Meadow-rue (Thalictrum flavum). The fruits become swollen and egg-shaped with a thickened wall, they are ribbed and pointed and contain one or two yellow larvae instead of seeds.
Where Common Meadow-rue (Thalictrum flavum) is present.
Summer and autumn.
Usually bivoltine. The larva hibernates in the soil and pupates in spring.
It appears to be uncommon or under recorded in Britain.
It appears to be uncommon or under recorded 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