Good Morning, it's time for Lecture #11: Psocoptera and Phthiraptera
Good Morning, it's time for Lecture #11: Psocoptera and Phthiraptera
Good Morning, it's time for Lecture #11: Psocoptera and Phthiraptera
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<strong>Good</strong> <strong>Morning</strong>,<br />
it’s <strong>time</strong> <strong>for</strong><br />
<strong>Lecture</strong> <strong>#11</strong>:<br />
<strong>Psocoptera</strong> <strong>and</strong><br />
<strong>Phthiraptera</strong>
Zoraptera<br />
Isoptera<br />
Mantodea<br />
Blattodea<br />
Hemiptera<br />
Holometabola<br />
Thysanoptera<br />
<strong>Psocoptera</strong><br />
<strong>Phthiraptera</strong><br />
Phylogeny<br />
of<br />
Hexapoda
!<br />
Order <strong>Psocoptera</strong> - psocids<br />
<strong>and</strong> bark lice<br />
1) Adults may be winged or wingless!<br />
(Most species are winged!<br />
2)!Two pairs membranous wings, when present!<br />
3)!No cerci!<br />
4) Biting/chewing mouthparts!<br />
5) Herbivores <strong>and</strong> scavengers!
!<br />
2)!Two pairs membranous wings, when present!<br />
3)!No cerci!<br />
<strong>Psocoptera</strong>
4) m<strong>and</strong>ibulate mouthparts - adapted <strong>for</strong> gnawing <strong>and</strong><br />
scraping!
4) Biting/chewing mouthparts!<br />
<strong>Psocoptera</strong>
<strong>Psocoptera</strong><br />
1) Adults may be<br />
winged or<br />
wingless (Most<br />
species are<br />
winged)!
<strong>Psocoptera</strong>
Zoraptera<br />
Isoptera<br />
Mantodea<br />
Blattodea<br />
Hemiptera<br />
Holometabola<br />
Thysanoptera<br />
<strong>Psocoptera</strong><br />
<strong>Phthiraptera</strong><br />
Phylogeny<br />
of<br />
Hexapoda
1) !apterous !<br />
Order <strong>Phthiraptera</strong> - lice<br />
2) !body dorso - ventrally flattened !<br />
3) !ectoparasites of birds <strong>and</strong> mammals!<br />
4) sucking (haustellate) or biting/chewing<br />
mouthparts (two groups of lice) !<br />
5) claws modified <strong>for</strong> grasping host (fur <strong>and</strong><br />
feathers)!
1) !apterous !<br />
Order <strong>Phthiraptera</strong> - lice<br />
2) !claws modified <strong>for</strong> grasping host (fur <strong>and</strong><br />
feathers)!
Eggs of<br />
<strong>Phthiraptera</strong>
nymphs
Louse Classification<br />
Chewing lice used to be called Order<br />
Mallophaga (included Amblycera,<br />
Ischnocera <strong>and</strong> some<strong>time</strong>s<br />
Rhynchophthirina - elephant lice)<br />
Sucking lice used to be called Order<br />
Anoplura
The Lice<br />
PSO = <strong>Psocoptera</strong><br />
AMB = Amblycera<br />
ISC = Ischnocera<br />
ANO = Anoplura<br />
Bark lice<br />
Chewing lice<br />
Sucking lice<br />
(from Prof. Rod Page, Univ. Glasgow)
The Lice
Now we have:<br />
Louse Classification<br />
Order <strong>Phthiraptera</strong> - all lice<br />
Suborder Amblycera - chewing lice<br />
Suborder Ischnocera - chewing lice<br />
Suborder Anoplura - sucking lice
Suborder Amblycera<br />
1. M<strong>and</strong>ibulate<br />
2. Head as wider or wider than prothorax<br />
3. Antennae more or less clubbed, usually concealed in grooves<br />
4. Maxillary palps present
1. Antennae<br />
more or<br />
less<br />
clubbed,<br />
usually<br />
concealed<br />
in grooves<br />
2. Maxillary<br />
palps<br />
present<br />
Suborder Amblycera
Family<br />
Menoponidae<br />
-<br />
ectoparasites<br />
of birds<br />
(Suborder<br />
Amblycera)
1. M<strong>and</strong>ibulate<br />
2. Head as wider or wider than<br />
prothorax<br />
3. Antennae fili<strong>for</strong>m <strong>and</strong><br />
exposed<br />
4. Maxillary palps absent<br />
Suborder Ischnocera
1. Antennae<br />
fili<strong>for</strong>m <strong>and</strong><br />
exposed<br />
2. Maxillary palps<br />
absent<br />
Suborder Ischnocera
Family<br />
Trichodectidae<br />
- ectoparasites<br />
of mammals<br />
(Suborder<br />
Ischnocera)
1. Haustellate mouthparts<br />
2. Head narrower than<br />
prothorax<br />
Suborder<br />
Anoplura
1. Haustellate mouthparts<br />
Suborder<br />
Anoplura
1. Haustellate mouthparts<br />
Anoplura
Family Pediculidae - on man<br />
<strong>and</strong> other primates
Family Pthiridae - crab lice on<br />
Homo <strong>and</strong> Gorilla
Coevolution of hosts <strong>and</strong> parasites
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