PHYLUM ARTHROPODA

1
PHYLUM ARTHROPODA IV. Subphylum Uniramia
Class Insecta
2
PHYLUM ARTHROPODA IV. Subphylum Uniramia A.
Characteristics 1. six legs 2. 2-pair
wings
3
PHYLUM ARTHROPODA IV. Subphylum Uniramia A.
Characteristics 1. six legs 2. 2-pair
wings 3. compound eyes 4. one pr. antenna
4
PHYLUM ARTHROPODA IV. Subphylum Uniramia B.
Mouthparts 1. mandibulate basic plan
5
PHYLUM ARTHROPODA IV. Subphylum Uniramia B.
Mouthparts 2. haustellate stylets
6
PHYLUM ARTHROPODA IV. Subphylum Uniramia C.
Development 1. hemimetabolous (gradual
metamorphosis) egg ? nymphal stages ? adult
7
PHYLUM ARTHROPODA IV. Subphylum Uniramia C.
Development 2. holometabolous (complete
metamorphosis) egg ? larval stages ? pupa
? adult
8
PHYLUM ARTHROPODA IV. Subphylum Uniramia C.
Development 3. diapause
9
PHYLUM ARTHROPODA IV. Subphylum Uniramia D.
Order Mallophaga chewing lice hemimetabolous
-- ectoparasites, mostly of birds --
wingless -- dorso-ventrally flattened
10
PHYLUM ARTHROPODA IV. Subphylum Uniramia D.
Order Mallophaga 1. Menopon shaft
louse of fowl
11
PHYLUM ARTHROPODA IV. Subphylum Uniramia D.
Order Mallophaga 2. Menacanthus body
louse of fowl
12
(No Transcript)
13
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous
1. general anatomy -- ectoparasites of
mammals -- wingless dorso-ventrally
flattened -- tarsi modified for grasping hair
shafts -- maxilla and labium stylets
mandibles absent
14
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous
2. general life cycle -- eggs nits
glued to hair shafts
15
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous
3. Pediculus humanus capitus human head
louse
16
(No Transcript)
17
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous
1. Pediculus humanus capitus --
transmits no diseases -- plica polonica
18
(No Transcript)
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous
1. Pediculus humanus capitus head
lice and language -- cooties -- lousy --
nitpicking -- fine toothed comb
23
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous
4. Pediculus humanus humanus human body
louse
24
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 4.
Pediculus humanus humanus human body louse
a. Epidemic typhus (Rickettsia
prowazekii) -- Louse ingest bacteria --
invades gut epithelium repeated cycles of
division, cell rupture, infection
ultimately kills louse -- bacteria passed in
louse feces scratched into wound -- high
fever, backache, intense headache, profuse
sweating recovery or death
25
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 4.
Pediculus humanus humanus human body louse
a. Epidemic typhus (Rickettsia
prowazekii) -- can reach 100 mortality --
severe outbreaks in prisoner-of-war and refugee
camps
26
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 4.
Pediculus humanus humanus human body louse
b. Trench fever (Rochalimaea rickettsial
bacteria) -- first reported in 1914 --
transmitted through louse feces -- symptoms
similar to epidemic typhus recurrent bouts of
fever -- problem in the homeless
27
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 4.
Pediculus humanus humanus human body louse
c. Louse borne relapsing fever (Borrelia
spirochete) -- develops in hemocoel of
louse -- released when louse is crushed
against skin invades bite -- recurrent bouts
of severe fever and sweating -- usually not
fatal, but can reach 50 mortality in the
undernourished
28
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 5.
Phthirus pubis human pubic louse crabs
29
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 5.
Phthirus pubis human pubic louse crabs
A Gaelic curse "Go gcreime na míolta crúbacha
do bhall fearga" Phonetic guh GREH-muh nuh
MEE-uhl-tuh KROO-buh-khuh duh WAHL FA-ruh-guh
Translation May the crab lice gnaw at your
manly part
30
PHYLUM ARTHROPODA IV. Subphylum Uniramia E.
Order Anoplura sucking lice hemimetabolous 6.
Haematopinus suis pig body louse
31
PHYLUM ARTHROPODA IV. Subphylum Uniramia F.
Order Hemiptera true bugs hemimetabolous
mandibles maxilla stylets 1. Cimex
bedbug -- wingless, ectoparasite on humans
32
PHYLUM ARTHROPODA IV. Subphylum Uniramia F.
Order Hemiptera true bugs hemimetabolous
mandibles maxilla stylets 1. Cimex
bedbug -- wingless, ectoparasite on humans
33
Order Hemipera Bedbug
34
PHYLUM ARTHROPODA IV. Subphylum Uniramia F.
Order Hemiptera 2. Triatoma Rhodnius
vectors for Chagus disease (T. cruzi) review
earlier notes
35
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 1.
anatomy -- wingless ectoparasites
-- laterally compressed -- backward-facing
hairs ctenidia
pronotal ctenidium
ocular bristle
genal ctenidium
trochanter of hindleg w/ resilin
maxilla labium stylets
36
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera 2. life cycle
holometabolous -- adults feed on blood of
host
37
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera 2. life cycle
holometabolous
38
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 3.
Pulex irritans human flea also on pigs,
rodents -- no ctenidia ocular bristle
below eye
39
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 3.
Pulex irritans
flea cravat
40
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 4.
Ceratophyllus chicken flea will get on humans
41
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 5.
Ctenocephalides dog and cat flea IH for
Hymenolepis Dipylidium
42
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 5.
Ctenocephalides dog and cat flea IH for
Hymenolepis Dipylidium
43
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera 5. Ctenocephalides
44
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 5.
Ctenocephalides
45
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 6.
Tunga penetrans the chigoe
46
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 6.
Tunga penetrans
47
(No Transcript)
48
(No Transcript)
49
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis oriental rat flea also
feeds on humans -- no ctenidia ocular
bristle in front of eye
50
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis a. Plague Yersinia
pestis 1) life cycle -- flea ingests
bacteria grows in gut -- plugs up
esophagus -- when feeding, flea
repeatedly tries to clear esophagus,
resulting in injection of large
numbers of bacteria
51
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis a. Plague Yersinia
pestis 2) forms of plague --
bubonic plague bacteria settles in lymph
nodes buboes intense fever, headache, body
pain, delirium bubo becomes
necrotic 25-50 fatality
52
(No Transcript)
53
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis a. Plague Yersinia
pestis 2) forms of plague --
septicemic plague bacteria in bloodstream
systemic causes hemorrhaging black
death recovery unlikely
54
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis a. Plague Yersinia
pestis 2) forms of plague --
pneumonic plague bacteria in lungs,
spread by coughing highly
contagious highly fatal
55
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera a. Plague
56
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis a. Plague Yersinia
pestis 3) plague and human history
-- 1346 siege of Caffa 25 of Europe died
within 8 years -- repeated plagues in
1400s -- 1665 1/5 of population of
England died
57
(No Transcript)
58
Plague doctors
59
(No Transcript)
60
(No Transcript)
61
Ring-around-the-rosy
62
PHYLUM ARTHROPODA IV. Subphylum Uniramia G.
Order Siphonaptera fleas holometabolous 7.
Xenopsylla cheopis b. Murine typhus
Richettsia sp.