Pearly Underwing - Peridroma saucia

Description

Wingspan 45 to 56 mm. The upperwing is quite variable, and the hindwings are semi-translucent, giving the appearance of a pearly sheen.

Identification difficulty
Habitat

A migrant species in Britain.

When to see it

Although most frequent in September and October, has appeared in all months.

Life History

The larvae are not usually found in Britain, but are believed to feed on a number of herbaceous plants.

UK Status

Varying in numbers, but usually coinciding with arrivals of other European migrants. It can occur almost anywhere in Britain, but is generally more common in the south. In a recent survey to determine the status of all macro moths in Britain this species was classified as a migrant.

VC55 Status

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

Reference
73.307 BF2119

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Pearly Underwing
Species group:
insect - moth
Kingdom:
Animalia
Order:
Lepidoptera
Family:
Noctuidae
Records on NatureSpot:
8
First record:
10/09/2006 (Skevington, Mark)
Last record:
03/10/2025 (Ryder Hurn)

Total records by month

% of records within its species group

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