Moth Night 2020 takes place between 27th and 29th August and has been chosen to coincide with the flight periods of four of the Red Underwing moths recorded in the British Isles. The target species (if you wish to try and record them) are a mix of resident, colonist and immigrant species. Remember though that Moth Night is not just about the target or theme species, you can trap anywhere, enjoy the experience and submit your results. All records are welcome.

© Barry Dickerson

Red Underwing

Catocala nupta

Resident and widespread in England, localised in Wales, spreading northwards in recent years and now extends into Scotland.


© Keith Tailby

Rosy Underwing

C. electa

Considered resident in the Channel Islands, but a rare immigrant with under 20 records in southern England. A run of recent records from a site in Dorset suggest it may also be establishing itself in the UK.


© Les Evans-Hill

Dark Crimson Underwing

C. sponsa

Resident chiefly in the New Forest, north Hampshire and south Wiltshire; it is also known as an immigrant and there has been a conspicuous spike in records at sites in southern England over the last two years.


© David Green

Light Crimson Underwing

C. promissa

Resident, now restricted to the New Forest, north Hampshire and south Wiltshire, formerly widespread, but lost from Sussex, Kent and the Oxfordshire / Buckinghamshire border in the mid-twentieth Century. It also occurs as an immigrant.


Twenty Other Moths to Look Out For in August

The following moths have all featured in the 10 most abundant macro and micro-moths recorded during previous August Moth Nights


Large Yellow Underwing Noctua pronuba. © Les Evans-Hill

Common Rustic agg. Mesapemea secalis/didyma. © David Green

Flame Shoulder Ochropleura plecta. © Les Evans-Hill

Lesser Broad‐bordered Yellow Underwing Noctua janthe. © Les Evans-Hill

Brimstone Moth Opisthograptis luteolata. © Les Evans-Hill

Dark Arches Apamea monoglypha. © Les Evans-Hill

Riband Wave Idaea aversata. © David Green

Shuttle‐shaped Dart Agrsotis puta. © Les Evans-Hill

Common Carpet Epirrhoe alternata. © Mark Parsons

Straw Dot Rivula sericealis. © Mark Parsons


Water Veneer Acentria ephemerella. © Mark Parsons

Agriphilia straminella. © Mark Parsons

Light Brown Apple Moth Epiphyas postvittana. © Mark Parsons

Agriphilia tristella. © Mark Parsons

Blastobasis adustella. © David Green

Mother of Pearl Pleuroptya ruralis. © Les Evans-Hill

Eudonia mercurella. © Mark Parsons

Acrobasis advenella. © photographer

Garden Grass Veneer Chrysoteuchia culmella. © Mark Parsons

Bird Cherry Ermine Yponomeuta evonymella. © Mark Parsons