Uncompahgre Fritillary Butterfly vs Essex Skipper

Side-by-side species comparison

Attribute Uncompahgre Fritillary Butterfly Essex Skipper
Scientific Name Boloria acrocnema Thymelicus lineola
Order Lepidoptera Lepidoptera
Family Nymphalidae Hesperiidae
Size 3-4 cm wingspan 26-30 mm wingspan
Habitat Mountains Grasslands
Diet Herbivores Omnivores
Regions United States Europe, western Asia (introduced to North America)
Conservation Endangered Least Concern

Uncompahgre Fritillary Butterfly

A small alpine butterfly found only above 3900 m in the San Juan Mountains of Colorado. It was not discovered until 1978.

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Did You Know?

Climate change is pushing its alpine habitat ever higher, leaving it with nowhere to go.

Essex Skipper

A small orange-brown skipper so similar to the small skipper that it was not recognised as a separate British species until 1889. The undersides of its antenna tips are black, not orange.

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Did You Know?

It was overlooked in Britain for over a century because it was confused with the nearly identical small skipper.