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.

Gall Adult

There are no other species listed as causing galls on the fruits of Meadow-rue (current BPGS key: Redfern and Shirley 2011)

Provide a phot of the flowering head

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.