vpg logo Parasite Diagnostic Key
Ruminant Lice

DOG LICE

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CAT LICE

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HORSE LICE

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SWINE LICE

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RUMINANT LICE

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POULTRY LICE
Lice Anatomy & Terms

1. Ruminant Lice with head wider than thorax
                                            ................................... Bovicola (Damalinia) sp.
2. Ruminant Lice with head narrower than thorax
                                            ................................... Go to: 3 & 4


3. All tarsal claws are large compound claws
                                            ................................... Haematopinus sp.
4. First pair of tarsal claws are small simple claws
                                            ................................... Linognathus sp.

Linognathus vituli claws


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NC State College of Veterinary Medicine
1060 William Moore Drive
Raleigh, NC 27607