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102 Cards in this Set
- Front
- Back
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What are the two of lice?
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chewing and biting
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What order are chewing lice?
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Mallophaga
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What order are sucking lice
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Anoplura
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Where are lice found?
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hair coat or feathers
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Are lice host specific?
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very host specific
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Do lice have wings?
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no
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What shape are lice?
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dorso-ventrally flattened
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What type of life cycle do lice have?
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incomplete metamorphosis (nymph look like miniature adult)
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How are lice transmitted?
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direct contact; bedding can be fomite
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Where does tick life cycle occur?
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entire life cycle is on host
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What is body appearance of chewing lice?
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width of head greater than head
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How many tarsal claws do mammalian lice have?
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one (except for Heterodoxus spiniger)
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How many tarsal claws do avian lice have?
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two claws
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Do chewing lice have eyes?
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no
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Where are chewing lice mandibles located
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ventrally
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Trichodectes canis common name
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Dog Biting Louse
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Trichodectes canis host?
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dogs, coyotes
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What are distinctive features of Trichodectes canis?
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rounded forehead & 3 segmented antennae
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Where is Trichodectes canis found on its host?
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head, neck & tail
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Trichodectes canis can be an intermediate host for...
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Dipylidium caninum
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What is the general name for Felicola subrostratus
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"Cat Louse"
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What is the only louse found on cats?
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Felicola subrostratus
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What are distinct features of Felicola subrostratus?
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triangular head w/ ventral groove; 3 segmented antennae
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What is the distinctive feature of Bovicola?
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dark banding on abdomen
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Bovicola limbatus general name?
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Angora Goat Biting Louse
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What is the host of Bovicola limbatus?
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goats
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What can Bovicola limbatus cause damage to?
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mohair
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What is the common name for Bovicola bovis?
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"Cattle Biting Louse"
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What is the host of Bovicola bovis?
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cattle
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Where is Bovicola bovis found on its host?
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shoulders and dorsal midline of cattle
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When is Bovicola bovis mostly a problem?
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winter
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What is the common name for Bovicola equi?
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"Horse Chewing Louse"
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What is the only species of biting louse found on horses?
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Bovicola equi
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What effect does Bovicola equi cause?
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motorized dandruff
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What is the common name for Heterodoxus spiniger?
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"Dog Louse"
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What are the hosts for Heterodoxus spiniger?
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dogs & coyotes
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What are the distinctive features of Heterodoxus spiniger?
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triangular head w/ 2 ventral spines ("vampire teeth"); hidden antennae
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Is Heterodoxus spiniger only a chewing louse?
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mostly chewing louse but does feed some on blood
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How many tarsal claws do bird lice have?
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two!
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What is the common name for Goniocotes gallinae?
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"Fluff Louse"
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What are the hosts of Goniocotes gallinae?
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chickens, pheasants, pigeons
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Where is Goniocotes gallinae found on its host?
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in fluff at feather base
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What are distinctive features of Goniocotes gallinae?
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two long setae (hairs); antennae projected (stick out)
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What is the common name for Goniodes gigas?
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"Large chicken Louse"
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Where is Goniodes gigas found on its host?
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on body & feathers
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What are distinctive features of Goniodes gigas?
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three long setae at margin of temporal lobe
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What is the common name for Chelopistes meleagridis?
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"Large Turkey Louse"
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What is the host of Chelopistes meleagridis?
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wild & domesticated turkeys
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Where is Chelopistes meleagridis found on its host?
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on neck & breast features
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What are distinctive features of Chelopistes meleagridis?
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1 long setae at end of temporal lobes
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What is the common name for Menopon gallinae?
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"Shaft Louse"
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What are the hosts of Menopon gallinae?
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chickens, ducks, pigeons
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How do Menopon gallinae lay their eggs?
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in clusters
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What are distinctive features of Menopon gallinase?
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no spines under head but setae at end of lobe; less hairy than body louse (but still has hair)
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What is the common name for Menacanthus stramineus?
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Chicken Body Louse
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What are the hosts for Menacanthus stramineus?
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chickens, turkey, peafowl, & pheasant
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What are distinctive features of Menacanthus stramineus?
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two short spines on underside of head; yellow colored, very hairy abdomen
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Where on their hosts are Menacanthus stramineus?
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on areas of the body that is not heavily feathered
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What is distinct about Menacanthus stramineus eggs?
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have filaments on anterior shells
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What age group of birds are most susceptible to Menacanthus stramineus?
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young birds
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What is the suborder of sucking lice?
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Anoplura
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What do sucking lice feed on?
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tissue fluids & blood
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What is the body shape of sucking lice?
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small thorax, large abdomen, robust legs (whatever that means)
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How many tarsal claws do sucking lice have?
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one
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Are there sucking lice of birds?
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no
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What is the common name of Heamatopinus asini?
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"Horse Sucking Louse"
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What is the host of Haematopinus asini?
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horse
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Where is Haematopinus asini located on its host?
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head, neck, back & inner thighs
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What are the clinical signs of Haematopinus asini?
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(esp in undernourished horses) unthriftiness, rough hair coat, irritation
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Does Haematopinus asini have eyes?
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No, ocular tubercles
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What is the common name of Haematopinus suis?
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Hog Louse
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What is the host of Haematopinus suis?
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swine
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What are the clinical signs of Haematopinus suis?
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rubbing which causes skin damage & hair loss
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When are Haematopinus suis in greatest numbers?
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winter
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Does Haematopinus suis have eyes?
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no, ocular tubercles
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What is Haemtopinus suis a vector of?
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Mycoplasma haemosuis
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What is the common name of Haemtopinus quadripertusus?
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Cattle Tail Louse
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What are the hosts of Haemotopinus quadripertusus?
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cattle
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Where is Haematopinus quadripertusus found on its host?
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tail switch & eye lashes
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Does Haemtopinus quadripertusus have eyes?
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no, ocular tubercles
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What is distinctive about Haemtopinus quadripertusus's tarsal claws?
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first set is small
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What is the common name of Linognathus vituli?
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"Long-Nosed Cattle Louse"
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What is a distinctive characteristic of Linognathus vituli?
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spiracles are flush to body (not raised on tubercles)
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What is the host species of Linognathus setosus?
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dogs & foxes
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What can occur w/ Linognathus setosus?
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anemia due to huge population of lice
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What is the common name of Solenoptes capillatus?
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"Little Blue Louse"
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What is the host species of Solenoptes capillatus?
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cattle (found on their face & body)
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What is a distinctive characteristic of Solenoptes capillatus?
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abdominal spiracles on raised tubercles (stick out)
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Can human lice only populate humans?
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no, they can be found on other hosts
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Do human lice have eyes?
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yes
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What is the common name for Pediculus humanus?
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"Human Head Louse"; "Human Body Louse"
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What is the body shape of Pediculus humanus?
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short head, short neck region, eyes, long abdomen, legs are all equal size. slender tarsal claws
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What is the common name for Pediculus humanus capitus?
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"Head Lice"
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What is the most common host for Pediculus humanus capitus?
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school children
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How is Pediculus humanus capitus transmitted?
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direct contact; fomites of combs/clothes
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What is the common name for Pediculus humanus humanus?
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Body Lice
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How are Pediculus humanus humanus transmitted?
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thru clothing
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What is Pediculus humanus humanus associated with transmitting?
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Rickettisa prowazekki (murine typhus) & Bartonella quintana (trench fever)
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What is the common name for Pthirus pubis?
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Crab Louse (amongst other things)
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What is the body shape of Pthirus pubis?
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short head, no neck, eyes, & heart shaped body, wide thorax, short abdomen; legs w/ large claws
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Where is Pthirus pubis found on humans?
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pubic or facial hairs
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How is Pthirus pubis transmitted?
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direct contact; bedding as fomite.
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