Exam II - Otobius spp.

Question 1

What is the common name for Otobius spp?

Answer 1

Spinose ear tick

“Spinose” because it’s a soft tick, “ear tick” because it likes ears

Question 2

What is/are the host(s) for Otobius spp?

Answer 2

Livestock and humans, ears of dogs

Question 3

Describe the Otobius spp adult

Answer 3

Mouthparts not visible dorsally. Integument covered with short sharp spines

Raisins with legs

Question 4

Where on the animal do you find Otobius spp adults?

Answer 4

Trick question! The adults are nonparasitic and are not found on the animall! They are found in the barn, field, etc…

Question 5

Which life cycle stage(s) of Otobius spp are parasitic?

Answer 5

Larvae & nymphs

Question 6

Describe pathogenesis & clinical signs associated with Otobius spp

Answer 6

ear canals affected seriously in large tick buildups. Heavy infestations lead to anemia.

Question 7

Treatment & prevention options for Otobius spp?

Answer 7

topical use of acaricidal applications in ear canals; treatment of premises