Lice Flashcards
Define anoplura.
Sucking lice. Feed on blood of mammals and other lice.
Define mallophagan.
Chewing lice. Feed on hair and scale of mammals and birds.
What is the lifecycle of lice?
- Lay eggs cemented to hair shafts
- Nymph
- 2 moults
- Adults
How long is the lice lifecycle?
1 month
What does lice infection cause?
Pruritic hair loss
Self-trauma
Anaemia
Vector of some viral and rickettsial diseases
Name 6 chewing lice species.
Bevicola bovis
Bevicola ovis
Bevicola equi
Felicola subrostratus
Trichodectes canis
Menacanthus stramineus
Where on the body is bevicola bovis?
Head, neck, shoulders, back, rump
Where on the body is bevicola ovis?
Mobile over whole body
What is caused by bevicola ovis?
- Serum exudated from bite wounds mats wool
- May attract blowflies
What on the body is bevicola equi?
Dorsal aspect
What is the appearance of bevicola equi?
Uncommon. Large enough to see
What is the pathogenicity of felicola subrostratus?
- More pathogenic in elderly or ill animals
- More in long haired breeds or matted/neglected fur
Where on the body is trichodectes canis?
Head, neck, tail
What does trichodectes canis cause?
Skin irritation
Self-trauma
Skin damage
Inflammation
Excoriation
Alopecia
Secondary bacterial infection
Where on the body of what animal is menacanthus stramineus?
Birds
Breast, thighs, vent
What does menacanthus stramineus cause?
Severe irritation
Inflamed and crust covered skin
Decreased weight
Decreased clutch size
Death of chicks
Name 7 sucking lice species.
Haematopinus suis
Haematopinus asini
Haematopinus eurysternus
Linognathus vituli
Linognathus setosus
Linognathus ovillus
Linognathus pedalis
What is the appearance of haematopinus suis?
Enormous
Quick
Where on the body of which animal is haematopinus suis?
Pig
Neck, jowl, ears
What does haematopinus suis cause?
Irritation
Pruritis
Self-trauma
Skin damage
Where on the body of which animal is haematopinus asini?
Horses
Head, neck, back, inner upper legs
What does haematopinus asini cause?
Restlessness
Loss of condition
Anaemia
Where on the body of which animal is haematopinus eurysternus?
Cattle
Anywhere on the body
What does haematopinus eurysternus cause?
Anaemia
Loss of condition
What is the common name for Linognathus vituli?
Long nosed cattle lice
Where on the body of which animal is linognathus vituli?
Cattle
Shoulders, neck, rump
What animal is affected by linognathus setosus?
Dogs
What does linognathus setosus cause?
Anaemia
What is the common name for linognathus ovillus?
Face louse
Where on the body of which animal is linognathus ovillus?
Sheep
Ears, face
What is the common name for linognathus pedalis?
Foot louse
Where on the body of which animal is linognathus pedalis?
Sheep
Feet, legs, scrotum
