Banded Hairstreak vs Autumn Dun

Side-by-side species comparison

Attribute Banded Hairstreak Autumn Dun
Scientific Name Satyrium calanus Leptophlebia marginata
Order Lepidoptera Ephemeroptera
Family Lycaenidae Leptophlebiidae
Size 25-32 mm wingspan 10-14 mm
Habitat Woodlands Woodlands
Diet Nectar Feeders Detritivores
Regions Eastern United States and southeastern Canada Europe
Conservation Least Concern Least Concern

Banded Hairstreak

A small dark brown butterfly with conspicuous bands of white-edged dark dashes on its hindwing underside. It has a short thin tail and a small orange spot near the tail.

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Did You Know?

It rubs its hindwings together after landing, moving the tails to mimic antennae and trick predators into attacking the wrong end.

Autumn Dun

A dark-winged mayfly that emerges in spring despite its common name. Nymphs inhabit slow-flowing sections of woodland streams among leaf litter.

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Did You Know?

Its common name refers to the brownish autumnal color of the adult, not its emergence season.