Depressariidae

32.040 Marsh Brown Depressaria ultimella Stainton, 1849

Local

Similar species:

Forewing: 7.5 to 10mm

Habitats: Wetlands, marshes, fens, river-banks, ditches and water margins.

Habits: The moth comes to light.

Foodplant: The larva at first feeds in a stem of the umbel, but soon moves into a side stem and finally the main stem of Fool's Watercress. Withered shoots indicate the presence of a larva. It occasionally feeds on Hemlock Water-dropwort, Fine-leaved Water-dropwort and Greater Water-parsnip. It gnaws a hole in the side of the main stem in preparation for pupation. This is capped with silk and frass. The pupation site is within the stem between the nodes and often under water.