Western Iron Dun vs Ornate Tiger Moth

Side-by-side species comparison

Attribute Western Iron Dun Ornate Tiger Moth
Scientific Name Epeorus longimanus Arctia flavia
Order Ephemeroptera Lepidoptera
Family Heptageniidae Arctiidae
Size 10-14 mm 45-55 mm wingspan
Habitat Rivers & Streams Meadows
Diet Omnivores Omnivores
Regions North America European Alps, Scandinavia
Conservation Least Concern Near Threatened

Western Iron Dun

An iconic eastern mayfly that signals the start of spring fly-fishing season. Nymphs have only two tails and cling to rocks in fast current.

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Did You Know?

It was named after Theodore Gordon, considered the father of American dry-fly fishing.

Ornate Tiger Moth

A rare alpine tiger moth with cream forewings bearing irregular brown markings and orange-yellow hindwings with dark spots. It inhabits high-altitude meadows and rocky slopes.

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Did You Know?

It is one of the rarest tiger moths in Europe and is legally protected in several countries.