Parasitology week 3

Both Ctenocephalides. felis and Ct. canis are found on dogs & cats, how could you distinguish between the two?

Identify this species of Siphonaptera

-identified by short thorax (Thorax distinctly shorter than the first abdominal segment)
-no pronotal or genal combs
-stay attached at single site
-not host specific
-common in hot dry areas
-other species occur on native mammals

What is true of Spilopsyllus cuniculi- the rabbit flea?

What suborder of lice do the features listed belong to?

-Sucking lice
-head narrow and pointed
-feed on blood or tissue fluid
-found on mammals

What suborder of lice to the features listed belong to?

-biting lice
-head broad, rounded
-feed on epidermis, feathers
-found on mammals and birds

Identify this species of lice.

-Head broad, front usually rounded, sometimes triangular, usually as wide as or wider than the thorax
-small yellow louse
-feeds on stratum corneum
-can cause hypersensitivity
-irritation, rubbing leading to “pulled wool” and reduced wool production
-to find lice on sheep part wool and look
-lice are colonial and photophobic

Identify this species of lice.

-Head at least twice as long as it is wide.
-Found on face and ears.
-Black.

Identify this species of lice.

-Has forward prolongations behind the antennae, marked paratergal plates and has one row of spines on each abdominal segment.
-Large blue louse on back and around butt of tail.