Chicken Body Louse vs Glacier Black Fly

Side-by-side species comparison

Attribute Chicken Body Louse Glacier Black Fly
Scientific Name Menacanthus stramineus Prosimulium alpestre
Order Phthiraptera Diptera
Family Menoponidae Simuliidae
Size 3-3.5 mm 2-4 mm body length
Habitat Farmland Mountains
Diet Blood Feeders Blood Feeders
Regions Europe, Asia, Africa, North America, South America, Oceania Alps, Northern Europe
Conservation Least Concern Least Concern

Chicken Body Louse

The most damaging louse of domestic poultry, feeding on feathers, skin, and blood. Heavy infestations cause feather loss, reduced egg production, and anemia.

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Did You Know?

This louse is unusual among bird lice because it actively feeds on blood by gnawing through pin feathers, not just on feather material.

Glacier Black Fly

A small black fly whose larvae develop in fast-flowing alpine streams. Adults are among the earliest insects active after snowmelt.

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Did You Know?

Larvae anchor themselves to rocks in torrential currents using silk pads and tiny hooks.