Entoma
Speckled yellow, Pseudopanthera macularia, plate

Geometer moths

Pseudopanthera macularia

Speckled yellow

Unlike most moths, this species flies readily in bright sunshine, darting low over woodland clearings by day rather than waiting for dusk.

WhereOpen woodland and scrubby banks
Size23 to 28 mm wingspan
WhenApril to June

The Speckled yellow is a distinctive day flying moth with bright yellow wings scattered across with dark brown blotches, a pattern that makes it hard to confuse with any other species sharing its habitat.

Caterpillars feed almost exclusively on wood sage, and the moth overwinters as a pupa in the soil before adults emerge in spring to fly low and fast over sunny woodland edges and scrubby banks.

Traits

Habitat

Woodland

Colour

Yellow, Brown

Active

Day

To people

Flies by day in sunshine; harmless to people.

Activity through the year

Often confused with

Straw-barred pearlOpen entry ›
Pyrausta despicata

A much smaller day flying moth at about 14 to 19 mm wingspan, straw yellow with grey brown bars rather than the bold dark blotches spread across the Speckled yellow's wings.

Questions

Is the Speckled yellow dangerous to people?

Flies by day in sunshine; harmless to people.

When can you see the Speckled yellow?

The Speckled yellow can be seen from April to June, by day.

Plate retouched from a photo by Vítězslav Maňák (SLU), CC BY‑SA 3.0, Wikimedia Commons Licence

The plate on this page is shared under the same licence as its source, CC BY-SA.

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Butterflies and moths›Geometer moths›Pseudopanthera

Last updated 2026-09-26. Every entry is checked against published sources.