Common arthropods and pests of companion animals
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COMMON ARTHROPODS AND PESTS OF COMPANION ANIMALS. Dr. Randy Wilson College of Veterinary Medicine and Biological Sciences Department of Pathology. Medically important Arthropods to pets and people. AKA - Who bit me and should I be worried?. CLASS:ARACHNIDA SPIDERS (order: Arachnida).

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Common arthropods and pests of companion animals l.jpg

COMMON ARTHROPODS AND PESTS OF COMPANION ANIMALS

Dr. Randy Wilson

College of Veterinary Medicine and Biological Sciences

Department of Pathology


Medically important arthropods to pets and people l.jpg

Medically important Arthropods to pets and people

AKA - Who bit me and should I be worried?


Class arachnida spiders order arachnida l.jpg
CLASS:ARACHNIDASPIDERS(order: Arachnida)

  • Tarantulas - Theraphosidae -

    • These can occasionally cause bite wounds but uncommon. Generally mild

  • Widow Spiders - Latrodectus

    • Not uncommon. Can be severe lesions / reactions

  • Brown Recluse Spider - Loxosceles

    • Rare. Can cause severe localized lesions


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ORDER PARASITIFORMES

  • Metastigmata - Ticks

    • Argasidae : Soft Ticks

    • Ixodidae : Hard Ticks

  • Mesostigmata - Mites

    • ex.Pneumonyssus, Ornithonyssus


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ORDER PARASITIFORMES

  • Prostigmata- Mites

    • ex. Demodex, Cheyletiella

  • Astigmata - Mites

    • ex.Sarcoptes,Notoedres/Otodectes Knemidokoptes

  • Order Acarini

    • Oribatid mites


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Important as vectors of other diseases

Rocky Mtn. Spotted Fever / Tick Fevers

Ehrlichia

Babesia (&other red blood parasites)

Lymes Dz.

TICKS(blood sucking li’l buggers!)

  • Soft Ticks - Argasidae

    • Argas , Ornithodoros, Otobius

  • Hard Ticks - Ixodes

    • Dermacentor , Rhipicephalus

    • Tick Paralysis


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MITES(chew on me will ya!)

  • MESOSTIGMATA

  • Pneumonyssus

    • nasal mite-canids/felids

  • Ornithonyssus

    • fowl mites / rat mites

    • occasionally humans

    • skin problems


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MITES

  • ASTIGMATA-genera

  • Sarcoptes

    • mange mite-all species

    • extreme pruritis/crusts

  • Notoedres/Otodectes

    • ear mites-felids & canids

  • Knemidokoptes

    • beak/skin mite - birds


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PROSTIGMATA

Demodex

Follicle mite - all species

Often nonpathogenic

immunosuppressed

Cheyletiella

Walking dandruff

canids/felids/lagomorp

Trombiculids-chiggers

ORDER ACARINI

Oribatid Mites

intermed. Host for tapeworms

potential livestock

MITES


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CLASS:INSECTALICE(what a lousy job)

  • Order Mallophagorida

  • Chewing lice

    • broad heads, chewing mouth parts

    • all species - skin probs

  • genera-

  • Trichodectes-canids

  • Felicola - felids

  • Bovicola-bovids


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CLASS:INSECTALICE(what a lousy job)

  • Order Anoplura

  • Sucking Lice

    • narrow heads, sucking mouth parts

    • all species - anemia, wt. Loss, some dz trans

      • Dipetalonema-dogs

      • blood para/pox - pigs

      • relapsing fever - human


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ORDER: SIPHONAPTERAFLEAS(runaway & join the circus!)

  • Ctenocephalides

    • canis - dog flea

    • felis - cat flea

      • most common

  • yes -the problem is here!

    • FAD / transmit tapeworms / cat scratch disease (bartonella)

    • Plague (Yersinia) Update!


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ORDER: DIPTERAFLIES,MOSQUITOES(don’t bug me!)

  • Flies

    • mostly livestock problems

    • Flystrike in dogs / maggot infestation rabbits

  • Cuterebridae

    • Bot flies - puppies, kittens, rabbits

  • Hippoboscidae

    • Keds - occas. Pet birds


  • Order diptera flies mosquitoes l.jpg
    ORDER: DIPTERAFLIES,MOSQUITOES

    • Mosquitoes (Culicidae)

    • Important vectors of diseases

      • malaria (Plasmodium) - birds / humans

      • yellow fever, dengue, EEE, WEE, VEE

    • Heartworm (Dirofilaria) - dogs and cats

      • Big problem in U.S.

      • 48 cases Larimer County 1998

  • Roundworms

    • public health risk - esp. children


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