The Crescent - Helotropha leucostigma

Alternative names
Celaena leucostigma

Wingspan 37 to 44 mm. In addition to the typical form there is a well marked variation, ab. fibrosa, which is just as frequent, as well as several intermediate forms.

Identification difficulty

A species of damp, marshy woodland and moorland.

When to see it

It flies in August and September.

Life History

The eggs overwinter and hatch in spring when the larvae feed on the stems of marshland plants, such as Yellow Flag (Iris pseudacorus).

UK Status

Locally widespread throughout Britain. 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).

73.119 BF2368

Leicestershire & Rutland Map


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

UK Map