Pine Processionary vs Japanese Bagworm Moth

Side-by-side species comparison

Attribute Pine Processionary Japanese Bagworm Moth
Scientific Name Thaumetopoea pityocampa Eumeta variegata
Order Lepidoptera Lepidoptera
Family Notodontidae Psychidae
Size 36-42 mm wingspan 25-45 mm (case length)
Habitat Forests Underground
Diet Omnivores Herbivores
Regions Southern Europe, North Africa, Middle East East Asia, Japan/Korea
Conservation Least Concern Least Concern

Pine Processionary

A grey moth whose caterpillars march in long nose-to-tail processions between their silk nests and feeding sites. The larvae's urticating hairs cause severe allergic reactions.

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Did You Know?

Jean-Henri Fabre once tricked a procession into following itself in a circle for seven days without stopping.

Japanese Bagworm Moth

Known as 'minomushi' in Japanese, the caterpillar builds a distinctive portable case from silk, twigs, and leaves. Adult females are wingless and never leave their cases. A common sight on Japanese trees.

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Did You Know?

Bagworm cases inspired the traditional Japanese rain cloak called 'mino,' and the word 'minomushi' literally means 'straw-raincoat insect.'