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Insects and other arthropods

Meal moth

Pyralis farinalis

Tabs group


These moths are recognizable by the two curved white lines on their forewings. The middle part of the wing is a lighter brown than either end. The wingspan is 15 to 30 mm. At rest, the moths adopt an odd posture, holding their wings flat and curving the abdomen upward.

The cream-coloured, hairless, brown-headed caterpillars are up to 20 mm long.

Life cycle

All stages of these insects (egg, caterpillar, chrysalid and adult) are found year-round when they live inside heated buildings. The moths can be seen flying outdoors from May to August. One female can lay from 250 to 500 eggs in small clusters.

Geographic distribution

The species is found all over the world, but is more common in temperate zones.

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