Arthropods

12/1 and 12/8

What are the segments of an arthropod called?

metameres

What is the arthropod exoskeleton made of?

chitin

What is the stage between molts called?

Instar

Instar

stage between molts

What’s it called when insects undergo little/no structural change as they age

Ametabolous development

Ametabolous insects will __ from egg to adult

undergo little to no change

What’s it called when insects undergo gradual structural change as they age

Hemimetabolous development

Hemimetabolous insects will __ from egg to adult

gradually change

What’s it called when insects undergo very different structural changes as they age

Holometabolous development

Holometabolous insects will __ from egg to adult

greatly change

What development style is 90% of insects?

Holometabolous

Immature Ametabolous are called ___

young

Immature Hemimetabolous are called ___

nymphs (or naiads)

Immature Holometabolous are called ___

Larvae then pupa

Larvae are ___

feeding machines

Pupa are __

immobile

What are imaginal discs?

Clusters of undifferentiated tissue that forms during embryogenesis and remains dormant in prior stages

Diapause is ___

developmental arrest (obligate or facultative, over wintering mechanism, any stage)

The Abdomen has ___ that are not always visible

11 segments

The Abdomen has spiracles, which are __

openings to the respiratory system

Body louse

Pediculus humanus humanus

Head louse

Pediculus humanus capitis

Crab louse

Phthirus pubis

[…] is a baceterium that causes typhus in humans and is tramsitted by body lice

Rickettsia prowazeki

Rickettsia prowazeki causes ___

epidemic typhus

[…] is a baceterium that causes trench fever in humans and is tramsitted by lice

Bartonella quintana

Bartonella quintana causes ___

Trench fever

[…] is a baceterium that causes louse-bourne relapsing fever in humans

Borrelia recurrentis

Borrelia recurrentis causes ___

Relapsing fever

“true bugs” come from order __

hemiptera

True bugs, order Hemiptera, have ___ development

Hemimetabolous

Temperate bed bugs

Cimex lectularius

Cimex lectularius are ___

temperate bed bugs

Tropical bed bugs

Cimex hemipterus

Cimex hemipterus are __

tropical bed bugs

West African bed bugs

Leptocimex bouetti

Leptocimex bouetti are ___

West African bed bugs

what is the male bed bug’s knife penis called

paramere

what is the female bed bug’s ‘inverted V-shape’ called

ectospermalege

Family Reduviidae

assassin bugs

Subfamily Triatominae

kissing bugs

Panstrongylus megistus, triatoma infestans, triatoma dimidiata, rhodnius prolixus are ___

reduvids

Fleas belong to ___

order siphonaptera

ctenidia

short peg-like spines on fleas

What is a flea head called

genal

Fleas have ___ development

Holometabolous

____ is the more common flea on dogs in N.America

Ctenocephalides felis

Oriental or tropical rat flea

Xenopsylla cheopis

Xenopsylla cheopis are __

oriental or tropical rat fleas

[…] is a baceterium that causes disease plague in humans

Yersinia pestis

Yersinia pestis causes __

the black death

What is a vector for the black death?

X. cheopis

[…] is a baceterium that causes murine/endemic typhus and is tramsitted by fleas

Rikettsia mooseri (aka R. typhi)

Rikettsia mooseri causes ___

Murine typhus (endemic typhus, flea-bourne typhus)

What is the primary reservoir of Rikettsia mooseri —> maurine typhus?

rattus norvegicus

How does Rikettsia mooseri get transmitted to people? (1)

X. cheopis (1)

How many legs does a mite have?

Eight

Tunga penetrans

Chigger

Chigger, chigoe, jigger, chique

Tunga penetrans

What’s the common name of the creature in which females penetrates under your nail

Chigger

Hard vs soft tick (hard)

Hard tick you see the capitulum (head)

Hard vs soft tick (soft)

Soft tick you cannot see the capitulum (head)

Hard ticks are part of family __

Ixodidae

Black legged tick

Ixodes scapularis

Ixodes scapularis

Black legged tick

Old name of black legged tick that he likes

I. dammini

2 Big carriers of Lyme disease

Ixodes scapularis and pacificus

Lyme disease

Borrelia burgdorferi

Ixodes scapularis has ___ (interesting feature)

A double anus

Carrier of RMSF (8)

Dermacentor andersoni (8)

Dermacentor andersoni

Rocky Mountain wood tick

Rocky Mountain wood tick

Dermacentor andersoni

Dermacentor variabilis

American dog tick

American dog tick

Dermacentor variabilis

Dermacentor variabilis First hosts for larva and nymphs

Rodents

Dermacentor variabilis Host for adults

Dogs, people

RMSF bacteria

Rickettsia rickettsii

Who named the RMSF bacteria?

Howard Taylor Ricketts

Winter tick

Dermacentor albipictus

Dermacentor albipictus

Winter tick

[…] is unique for being a one host tick (1)

Dermacentor albipictus (1)

[…] plagues moose :(

Dermacentor albipictus

[…] is unique because all 3 stages bite humans

Amblyomma spp.

Lone Star tick (.)

Amblyomma americanum (.)

Amblyomma americanum

Lone Star tick

[…] is a vector for RMSF and tularemia

Amblyomma americanum

Brown dog tick

Rhipicephalus sanguineus

Rhipicephalus sanguineus

Brown dog tick

[…] is a vector for boutonneuse fever, RMSF, Borrelia theileri, Rickettsia canis, and Babesia canis (1)

Rhipicephalus sanguineus (1)

Boutonneuse fever bacteria

Rickettsia connori

What bacteria causes malignant jaundice

Babesia canis

Brown ear tick (9)

Rhipicephalus appendiculatus (9)

Rhipicephalus appendiculatus

Brown ear tick

[…] is a vector for East Coast Fever (Theileria parva)(1)

Rhipicephalus appendiculatus (1)

Pulex irritans

human flea, prefers dogs

human flea, prefers dogs

Pulex irritans

Echidnophaga gallinacea

sticktight flea

sticktight flea

Echidnophaga gallinacea

Echidnophaga gallinacea host

chickens (dogs, rabbits, people, etc.)

[…] is a vector for plague and murine typhus (1)

Xenopsylla cheopis (1)