Arctic Louse Fly vs Snow Flea

Side-by-side species comparison

Attribute Arctic Louse Fly Snow Flea
Scientific Name Ornithomya fringillina Glaciopsyllus antarcticus
Order Diptera Siphonaptera
Family Hippoboscidae Ceratophyllidae
Size 4-6 mm 2-3 mm
Habitat Tundra & Arctic Tundra & Arctic
Diet Parasites Blood Feeders
Regions Scandinavia, northern Russia, subarctic Canada, Alaska Oceania
Conservation Least Concern Least Concern

Arctic Louse Fly

A flattened, wingless or short-winged parasitic fly that lives among the feathers of Arctic birds. Its laterally flattened body allows it to move easily through plumage. Adults have strong claws for gripping feathers.

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Did You Know?

These flies can survive being transported thousands of kilometers on migratory birds from the Arctic to their wintering grounds.

Snow Flea

A flea that parasitizes petrels and survives Antarctic conditions year-round.

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Did You Know?

It is the southernmost known flea, enduring temperatures far below freezing.