Northern Snow Scorpionfly vs North American Snow Scorpionfly

Side-by-side species comparison

Attribute Northern Snow Scorpionfly North American Snow Scorpionfly
Scientific Name Boreus westwoodi Boreus californicus
Order Mecoptera Mecoptera
Family Boreidae Boreidae
Size 3-4 mm 3-5 mm
Habitat Forests Mountains
Diet Omnivores Omnivores
Regions Northern Europe, Scandinavia, Finland, northern Russia North America
Conservation Least Concern Least Concern

Northern Snow Scorpionfly

A small, dark, flightless scorpionfly that appears on snow in late autumn and early winter. It is glossy black-brown with elongated mouthparts for feeding on mosses. Females have a prominent pointed ovipositor.

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Did You Know?

Despite being wingless, this insect can jump short distances using its powerful hind legs to move quickly across snow.

North American Snow Scorpionfly

A small dark wingless scorpionfly found in mountainous regions of western North America. It is active during winter months on moss-covered substrates.

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Did You Know?

These insects produce antifreeze compounds in their hemolymph that allow them to remain active at subzero temperatures.