Brown Hairstreak vs Cattle Biting Louse

Side-by-side species comparison

Attribute Brown Hairstreak Cattle Biting Louse
Scientific Name Thecla betulae Bovicola bovis
Order Lepidoptera Phthiraptera
Family Lycaenidae Trichodectidae
Size 36-40 mm wingspan 1.5-2 mm
Habitat Hedgerows Farmland
Diet Omnivores Omnivores
Regions Europe, temperate Asia Europe, Asia, Africa, North America, South America, Oceania
Conservation Least Concern (declining in parts of range) Least Concern

Brown Hairstreak

A secretive butterfly with rich brown wings and an orange flash on the female's forewings. Adults spend most of their time in tree canopies, rarely descending to ground level.

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Did You Know?

Eggs are laid singly on blackthorn and are easier to find in winter than the elusive adults are in summer.

Cattle Biting Louse

A chewing louse that infests cattle worldwide, causing irritation and economic losses in livestock. Infestations worsen in winter when cattle have thick coats.

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Did You Know?

Winter infestations of this louse can cause cattle to rub and scratch so intensely that they damage fences and lose significant weight.