Gelechiidae

35.075 Pond-sedge Miner Monochroa arundinetella (Boyd, 1857)

pRDB1

Similar species:

Forewing: 4.5 to 5mm

Habitats: Fens, marshes, ditches, reedbeds, river-banks, pond and lake margins.

Habits: The moth can be swept from the foodplant. It flies from dusk and occasionally comes to light.

Foodplant: The larva mines a long, narrow gallery on a leaf of Greater Pond-sedge and sometimes Lesser Pond-sedge. The mine may reverse on itself. In April it often starts a second mine on another leaf in the centre of the plant and mines down towards the base of the plant. It pupates in a cocoon within a leaf just above water level.