Entoma
Green silver-lines, Pseudoips prasinana, plate

Tuft moths

Pseudoips prasinana

Green silver-lines

This moth's caterpillar spins a tough boat-shaped cocoon under a leaf or in bark, using silk chemically similar to that of the domesticated silkworm.

WhereDeciduous woodland and wooded gardens
Size33 to 39 mm wingspan
WhenMay to September

The green silver-lines is a bright green moth with three roughly parallel white diagonal lines crossing each forewing, a green head and thorax, and orange antennae. It rests with wings folded tent-like over the body, resembling a fresh green leaf.

Two generations fly most years, with caterpillars feeding on the leaves of oak, beech and other broadleaved trees from summer into autumn. Before pupating they spin a tough boat-shaped cocoon on a leaf or in bark, where they overwinter.

Traits

Habitat

Woodland

Colour

Green, White

Active

Night

To people

Attracted to light after dark; harmless to people.

Activity through the year

Often confused with

Scarce silver-linesnot in guide
Bena bicolorana

Larger at about 42 to 47 mm wingspan, with only two white lines on the forewing instead of three and a more even apple-green colour.

Questions

Is the Green silver-lines dangerous to people?

Attracted to light after dark; harmless to people.

When can you see the Green silver-lines?

The Green silver-lines can be seen from May to September, at night.

Plate retouched from a photo by Ben Sale from UK, CC BY 2.0, Wikimedia Commons Licence

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Butterflies and moths›Tuft moths›Pseudoips

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