INSECTS: Argasids and Mites Flashcards
What common name is associated with argasids?
Soft ticks
What characteristics are associated with argasids?
- No scutum
- Leathery tegument, spinose, and bumpy
- Ventral mouthparts
- Over 2 nymphal stages
What is the common name for Otobius spp.?
Spinose ear tick
What is present on Otobius spp. adults?
Short, sharp spines
While larvae and nymphs are taxied, adults will -?
Not be on the animal, and do not feed
Where will Otobius infestations occur, and what can come of it?
Ear canals, and anemia
What is the common name for Argas spp.?
Fowl tick
What morphology is associated with Argas adults?
- Leathery, textured appearance
- Lateral line or crease
- Larger genital pore in females
What characteristics are associated with Argasids?
- Engorge rapidly
- Survive arid conditions
- Frequent feedings
- Disease transmission
How can mites be identified?
- Scales, spines, and setae on the body
- Legs have claws or suckers
Sarcoptidae spp. are ___________ mites, while Otodectes are restricted to a specific area of the body.
Burrowing
What mite species are non-burrowing?
- Psoroptes*
- Cheyletiella*
- Chorioptes*
What common name is associated with Sarcoptes scabiei?
Sarcoptic mange mite, Itch mite, Scabies mite
What morphology is associated with S. scabiei?
- Round
- Short legs
- 3rd and 4th pairs do not extend beyond body margin
Infesting the skin, S. scabiei will lead to -?
Erythema, scale, and crust (dried serum, and blood) formation leading to pruritis. All beginning with hair loss on the lateral elbow and ear pinna.
In swine, S. scabiei is spread from _______ to ______, with signs capable of appearing within 3 _______ from birth. The first lesions are wheals, leading to erythema that progresses to scabs, crust formation and __________, or thickening of the skin.
Sow
Piglets
Weeks
Hyperkeratosis
Where can S. scabiei be found on swine?
In earwax
Treating the sow, prior to farrowing, can be done for S. scabiei as a reliable indicator when older is -?
Pruritis over mite recovery during skin scrapings
In what species will S. scabiei be prevalent in the epidermal layers of the skin, as scaly or thickened skin? As well as being reportable?
Cattle
WWhat is the most pathogenic cattle mange?
S. scabiei
A loss in production from S. scabiei can occur in -?
Cattle
What can be administered to lactating dairy cattle for S. scabiei?
Eprinomectin
What common name is associated with Notoedres cati?
Notoedric cat mite
While similar to S. scabiei, what difference is associated with Notoedris cati?
Its about half its size
What is the common name for Knemidoctoptes spp.?
Scaly leg mite, Scaly face mite
What species are affected by Knemidoctoptes spp.?
Fowl
Knemidectoptes have their life cycles are all -?
Entirely on the host
What pathogenesis is associated with Knemidectoptes mites?
Inflammation, keratinization, lameness, and malformation of the feet
Non-burrowing mite Chorioptes bovis is associated with large and small ruminants and equids, and can be identified by their -?
Rounded mouthparts, sucker shape at the end of their stalks
What pathogenesis is associated with Chorioptes bovis?
Damaging hides, in late winters they produce mild conditions
What non-burrowing mite, called the Sheep scab mite, is oval with pointed mouthparts?
Psoroptes ovis
What does Psoroptes ovis cause?
Scab mange, due to piercing and chewing at epidermal layers, with zones of inflammation with serous exudate that lead to intense pruritis, restlessness, and ragged wool
Psoroptes ovis: Rapidly spreading over _________, they will find reservoir areas in non-winter months in the axilla, groin, and pinna.
Winter
Is Psoroptes ovis reportable?
Yes
Non-burrowing mite Otodectes cynotis, has many hosts, and can be identified by its -?
- Long legs
- Suckers
- Dark cerumen
Found in the ______, these mites will lead to frequent shaking of the head, as well as dry parchment like waxy material being produced.
Ears
Cheyletiella yasguri is identified with its ______, palpal claws, and as _________ ______.
Waist
Walking dandruff
What tests can be done for Cheyletiella yasguri?
Adhesive tape test
