Flies or moths on buttercup

Flies or moths on buttercup

Observation - Flies or moths on buttercup - UK and Ireland. Description: Golden brown flies or moths on what I think is a creeping buttercup flower.At one time there were nine on this flower and none on any of the surrounding buttercups.The plant was on a shaded bank by a path through trees.

Golden brown flies or moths on what I think is a creeping buttercup flower.At one time there were nine on this flower and none on any of the surrounding buttercups.The plant was on a shaded bank by a path through trees.