Interactive Night

Night

Large yellow underwing

Noctua pronuba

Brown moths that flash bright yellow hindwings as they fly. One of our commonest moths.

Wingspan
About 5cm
Look for them
June to October
Where
Gardens everywhere, drawn to lights

My spotter's list

A little swarm circles your lamp. Move your pointer and see.

When to look

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Moths

Good to know

Six things about moths

Flash

A yellow flash

When it takes off, the moth flashes its bright yellow hindwings, which can startle a bird into missing it.

Common

In every garden

The large yellow underwing is one of the most common moths in British gardens.

Numbers

So many moths

Britain has around 2,500 kinds of moth, but only about 60 kinds of butterfly.

Lights

Drawn to the light

Moths fly round lamps at night. Nobody is completely sure why, but lights seem to confuse how they steer.

Pollinators

Night pollinators

Moths visit flowers at night, carrying pollen just as bees do by day.

Caterpillars

Night feeders

The caterpillars feed at night on all sorts of garden plants and hide in the soil by day.

The real thing

Photos of moths

Large yellow underwing, photo 1
Photo: kallerna, CC BY-SA 3.0, Wikimedia Commons
Large yellow underwing, photo 2
Photo: Ben Sale from UK, CC BY 2.0, Wikimedia Commons
Large yellow underwing, photo 3
Photo: Ben Sale from Stevenage, UK, CC BY 2.0, Wikimedia Commons
Out and about

How to spot them

Leave an outside light on for a few minutes on a warm, cloudy night, or hang a white sheet with a torch behind it, and see who arrives.

Lend a hand

How to help

Leave some leaf litter and long grass over winter, grow native plants, and keep night-time lighting to a minimum.

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