Entoma
Lime-speck pug, Eupithecia centaureata, plate

Geometer moths

Eupithecia centaureata

Lime-speck pug

The Lime-speck pug's mostly white wings carry a single bold black blotch, a pattern that makes a resting moth look like a fresh bird dropping on a leaf.

WhereGardens, hedgerows and roadside verges
Size16 to 24 mm wingspan
WhenMay to September

The Lime-speck pug is a slender white moth with a single dark blotch on the leading edge of each forewing and a faint black dot on the hindwing, leaving it otherwise plain and pale at rest.

Caterpillars feed on a wide range of low plants including ragwort, mugwort, yarrow and knapweed, and pupae overwinter in the soil; adults fly from May to September and are common in gardens, hedgerows and rough grassland.

Traits

Habitat

Garden

Colour

White, Black

Active

Night

To people

Attracted to light; harmless to people.

Activity through the year

Often confused with

Chinese characternot in guide
Cilix glaucata

Both rest as convincing bird-dropping mimics, but Chinese Character has a scalloped wing margin and fine silvery lines forming a lettering pattern on a grey-brown ground, while Lime-speck Pug has a smooth wing edge with a single large dark blotch on the costa.

Questions

Is the Lime-speck pug dangerous to people?

Attracted to light; harmless to people.

When can you see the Lime-speck pug?

The Lime-speck pug can be seen from May to September, at night.

Plate retouched from a photo by Jerzy Strzelecki, 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›Eupithecia

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