Arthropods Lectures

hemimetabolous development

contains egg, nymph, and adult stages

holometabolous development

contains egg, larvae, pupa, and adult stages

diapause

developmental arrest in insects

Mallophagan lice

biting or chewing lice are called

Mallophagan lice

_______________ _______ feed on feathers and hair

filarids

some Mallophagan lice vector __________

mammal

sucking lice use _________ hosts only

blood

sucking lice feed on

Pediculus humanus humanus

human body louse

Pediculus humanus capitis

human head louse

hemimetabolous

lice grow via _______ development

diseases

sucking lice cause much itching and annoyance but do not transmit other _________

crab louse

louse of pubes, armpits, eyebrows, beards, mustaches

nothing

crab lice are vectors for _____

Phthirus pubis

crab louse

Rickettsia

typhus is genus __________

epidemic

lice can be vectors of _________ typhus

trench fever

Bartonella quintana, vectored by lice (also a rickettsia)

Cimex lectularius

temperate bed bug of humans

Cimex hemipterus

tropical bed bug of humans

Leptocimex bouetti

West African bed bug of humans

diseases

bed bugs do not transmit ________

bed bugs

can cause loss of sleep, sores from bites, anemia, allergic reactions

traumatic insemination

bed bugs engage in _______ _______ for reproduction (nymphs release chemicals to prevent mating)

blood

bed bugs feed on

bed bug

any time you see "Cimex" in the name you know it's a ______ _____

reduvid bugs

also known as kissing bugs

blood

kissing bugs feed on _____ at night

hemimetabolous

reduvid bugs use ____ development

Trypanosoma cruzi

reduvid/kissing bugs are hosts for

kissing bugs

Panstrongylus megistus, Triatoma infestans, Triatoma dimidiata, and Rhodnius prolixus are all _____ ______

blood

fleas feed on ____ of birds and mammals

holometabolous

fleas use ____ development

Pulex irritans

human flea that prefers dogs

Echinophaga gallinacea

sticktight flea

poultry

primary host of Echidnophaga gallinacea

Ctenocephalides canis

dog (and cat) flea

Ctenocephalides felis

cat (and dog) flea - through more common on dogs in NA

Xenopsylla cheopis

oriental/tropical rat flea

Xenopsylla cheopis

vectors plague and murine typhus

Tunga penetrans

chigger (and every other variation possible) flea

Tunga penetrans

flea that also contains Wolbachia

plague

Yersinia pestis

rodents

the plague is a natural disease of

bubonic

plague of lymph nodes

lungs

pneumonic plague is in the ____ and is nearly always fatal

septicemic

___ plague is the most severe and is fatal

murine typhus

Rickettsia mooseri

ticks

___ cause pathology from anemia, dermatosis, paralysis, otacariasis, and vectoring diseases

ticks

___ have egg, larva, nymph, and adult stages

hard tick

type of tick in which head is visible from above

soft tick

type of tick in which head is not visible from above

Ixodes scapularis

black legged tick

Lyme disease

Ixodes scapularis and Ixodes pacificus are vectors for ____ _____

dogs

Ixodes scapularis and Ixodes pacificus hosts

Ixodes scapularis

human granulocytic erlichiosis (HGE)

Lyme disease

Borrelia burgdorferi

Dermacentor andersoni

rocky mountain wood tick

Dermacentor andersoni

vectors Powassan encephalitis virus, Colorado tick fever virus, RMSF, anaplasmosis, tick paralysis, tularemia

Dermacentor variabilis

American dog tick

Dermacentor variabilis

principal vector for RMSF

Rickettsia rickettsii

Rocky Mountain Spotted Fever

Howard Taylor Ricketts

discovered rickettsia n shii

Dermacentor albipictus

winter tick (feeds only in winter)

Dermacentor albipictus

tick whose hosts are mostly elk, moose, deer, horses

Amblyomma americanum

lone star tick that vectors RMSF and tularemia

Rhipicephalus sanguineus

brown dog tick

Rhipicephalus sanguineus

tick that vectors Rickettsia canis, Babesia canis, Borrelia theileri, RMSF in Mexico, boutonneuse fever (Rickettsia connori)

Rhipicephalus appendiculatus

brown ear tick

Theileria parva

East Coast Fever, transmitted by Rhipicephalus appendiculatus (brown ear tick)

Boophilus

Genus _____ vectors for Congo hemorrhagic fever; Ganjon, Bhanja, thogoto viruses; Anaplasma marginale; Texas cattle fever

Texas cattle fever (redwater fever)

Babesia bigemina transmitted by genus Boophilus and Rhipicephalus sanguineus

Ornithodoros

___- spp. are primarily mammal soft ticks

Ornithodoros hermsi

vectors Borrelia hermsii (tick-borne relapsing fever) in NW states

rodent

Ornithodoros hermsi prefers ___ hosts

Ornithodoros cariaecus

soft tick of Mexico to S. Oregon

Otobius megnini

spinose ear tick of cattle

Argus persicus

fowl tick

Demodex follicularum

hair follicle mite

Demodex brevis

sebaceous gland mite

Demodex canis

dog follicle mite

mites

Demodex spp. are

Demodex canis

causes demodectic (red) mange in dogs

Trombicula

___ spp. are chigger mites in NA

digested tissue

chigger dermatitis is caused by Trombicula spp. mites drinking ____ _____ up like using a straw

Leptotrombidium

___ spp, is a vector for scrub typhus

scrub typhus

tsutsugamushi disease is also known as, caused by Orientia (Rickettsia) tsutsugamushi

Otodectes cyanotis

ear mites of dogs, cats, ferrets, rabbits

Sarcoptes scabei

mite causing sarcoptic mange in skin

Chorioptes

genus ____ causes chorioptic mange in domestic animals (Chorioptes bovis and Chorioptes texanus)

Psoroptes

genus ___ causes psoroptic mange (ex. Psoroptes ovis)

Notoedres cati

causes notoedric mange in cats and dogs

Dermatophagoides

___ spp. are dust mites

Varroa destructor

varroa mites that feed on bee pupae

Acarapis woodi

tracheal mites of bees