Great Grey Sedge vs Marbled White

Side-by-side species comparison

Attribute Great Grey Sedge Marbled White
Scientific Name Arctopsyche grandis Melanargia galathea
Order Trichoptera Lepidoptera
Family Hydropsychidae Nymphalidae
Size 20-30 mm 46-56 mm wingspan
Habitat Mountains Grasslands
Diet Omnivores Omnivores
Regions North America Europe, western Asia, North Africa
Conservation Least Concern Least Concern

Great Grey Sedge

One of the largest net-spinning caddisflies in North America with a wingspan over 40 mm. Larvae build robust catch-nets in powerful mountain torrents.

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Did You Know?

Larvae are partially predatory, consuming small invertebrates trapped in their nets alongside organic debris.

Marbled White

A distinctive butterfly with bold black and white chequered wings that resembles no other European species. Despite its appearance, it is a member of the browns family, not the whites.

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Did You Know?

Uniquely, females simply drop their eggs randomly into grass while in flight rather than placing them on food plants.