Gynnidomorpha minimana, the fen conch, is a moth of the family Tortricidae.

It is found in China (Hebei, Heilongjiang, Jianxi, Jilin, Yunnan), Taiwan, Japan, Korea, Russia and Europe,[2] where it has been recorded from Ireland, Great Britain, the Netherlands, Italy, France, Germany, Denmark, Norway, Sweden, Finland, Estonia, Latvia, Lithuania, Slovakia, Poland, Romania, Hungary, Albania and Corsica.

[3] The habitat consists of heathland and mosses.

The larvae feed on Pedicularis palustris.

They feed within the flowers and seedheads of their host plant.