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Lice

Order Phthiraptera

Obligate parasites that live on birds and mammals. They have flattened bodies and strong claws for gripping hair or feathers. Species-specific to their hosts.

Species in this Order (15)

Trichodectidae

Cattle Biting Louse

Bovicola bovis

A chewing louse that infests cattle worldwide, causing irritation and economic losses in livestock. ...

1.5-2 mm
Linognathidae

Cattle Sucking Louse

Linognathus vituli

A blood-sucking louse found on calves and young cattle worldwide. It has a distinctive long narrow h...

1.5-2.5 mm
Menoponidae

Chicken Body Louse

Menacanthus stramineus

The most damaging louse of domestic poultry, feeding on feathers, skin, and blood. Heavy infestation...

3-3.5 mm
Trichodectidae

Dog Biting Louse

Trichodectes canis

A chewing louse that infests domestic dogs, feeding on skin debris and secretions. It can serve as a...

1.5-2 mm
Haematomyzidae Vulnerable

Elephant Louse

Haematomyzus elephantis

A highly specialized louse found only on elephants, with piercing mouthparts adapted to penetrate th...

2-3 mm
Trichodectidae

Goat Biting Louse

Bovicola caprae

A chewing louse infesting domestic goats worldwide. It feeds on skin flakes and causes intense itchi...

1-2 mm
Haematopinidae

Hog Louse

Haematopinus suis

The largest louse found on domestic animals, exclusively parasitizing pigs. It feeds on blood and is...

4-6 mm
Haematopinidae

Horse Sucking Louse

Haematopinus asini

A large blood-sucking louse found on horses, donkeys, and mules. It prefers areas with long hair suc...

2.5-3.5 mm
Pediculidae

Human Body Louse

Pediculus humanus humanus

Closely related to the head louse but lives in clothing rather than on hair. It is the vector for ep...

2.5-3.5 mm
Pediculidae

Human Head Louse

Pediculus humanus capitis

An obligate ectoparasite of the human scalp that feeds on blood several times per day. It spreads th...

2-3 mm
Philopteridae

Large Turkey Louse

Chelopistes meleagridis

The largest louse found on domestic turkeys, feeding on feather material. It prefers the breast and ...

3-5 mm
Philopteridae

Peafowl Feather Louse

Goniodes pavonis

A large chewing louse found on peafowl and pheasants. It feeds on feather material and can damage th...

2-4 mm
Pthiridae

Pubic Louse

Pthirus pubis

A broad, crab-shaped louse that infests coarse body hair, primarily in the pubic region. It is trans...

1.5-2 mm
Menoponidae

Shaft Louse

Menopon gallinae

A fast-moving louse found on the feather shafts of chickens and other poultry. It feeds primarily on...

1.5-2 mm
Philopteridae

Slender Pigeon Louse

Columbicola columbae

A long slender louse found between the barbs of wing and tail feathers of pigeons and doves. It is o...

2-3 mm