Round-winged Muslin - Thumatha senex


Wingspan 15 to 20 mm. The sparsely scaled wings of this moth give it a thin, papery appearance.

Identification difficulty

Inhabits marshes and fenland.

When to see it

The adults fly in July and August, and are attracted by light.

Life History

The larvae feed on lichens, especially dog lichen, as well as various mosses.

UK Status

Distributed widely, though not commonly, throughout a large part of Britain, it is scarcer in Scotland and Ireland. In a recent survey to determine the status of all macro moths in Britain this species was classified as local.

VC55 Status

Occasional in Leicestershire and Rutland. L&R Moth Group status = C (very scarce resident or rare migrant).

72.037 BF2035

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map