1. HEMIPTEROID ORDERS PSOCOPTERA PHTHIRAPTERA THYSANOPTERA
(booklice, bark lice)
PHTHIRAPTERA
(lice)
THYSANOPTERA
(thrips)

2. Hexapoda Insecta Pterygota Neoptera Holometabola Apterygotes
Entognatha
Archaeognatha
Hexapoda
Zygentoma = Thysanura
Ephemeroptera
Insecta
Odonata
Plecoptera
Embiodea
Pterygota
Zoraptera
Dermaptera
Grylloblattodea ?
Mantophasmatodea
Orthoptera
Phasmatodea
Blattaria
Isoptera
Mantodea
Neoptera
Psocoptera
Phthiraptera
Thysanoptera
Hemiptera
Coleoptera
Rhaphidioptera
Megaloptera
Neuroptera
Hymenoptera
Holometabola
Mecoptera
Siphonaptera
Diptera
Apterygotes
Strepsiptera
Trichoptera
Paleoptera
Lepidoptera
Hemimetabolous
Holometabolous

3. Both mandibles modified
HEMIPTEROID CLASSIFICATION
Parasitic
Phthiraptera - lice
Mandibles present
Lacinia - a rod
Free living
Psocoptera - book lice
Sucking mouthparts
Thysanoptera - thrips
Right mandible lost
Mandibles + lacinia
= stylets
Hemiptera- true bugs
Both mandibles modified

4. Hexapod Orders Psocoptera Psoco - gnaw, ptera - wings
Number of Species
3200
Common names
Book lice, bark lice
Typical habitats
leaf litter, under stones, under bark
only modification of mouthparts
Lacinia is a rod
Distinguishing characteristics
-eat any organic material
-damage stored material - books, specimens
Other features

5. Psocoptera - Bark Lice

6. Psocoptera - Damage

7. Hexapod Orders Phthiraptera Phthir - louse, aptera - wingless
Number of Species
5,500
Common names
Lice
Typical habitats
Ectoparasites of birds and mammals
Distinguishing characteristics
-wingless
-modified fore tarsi
Other features
Reduced sense organs
-sucking & biting forms

8. Classification of lice
Classification schemes have been:
Order - Mallophaga - biting and chewing lice
Order - Siphunculata - sucking lice
Order - Phthiraptera
Suborder - Mallophaga
Suborder - Siphunculata
Order - Phthiraptera
Suborder - Amblycera
Suborder - Ischnocera
Suborder - Anoplura
Suborder - Rhynchophthirina

9. Classification of lice
Biting/chewing lice
Sucking lice
Elephant lice

10. Amblycera and Ischnocera

11. Anoplura

12. Rhychnophthirina

13. Generalized Life Cycle
Eggs (nits) on
hair or feathers
Adult on host
Three nymphal instars

14. Host Specificity
Bird hosts
Mammal hosts
Rhynchophthirina
Ischnocera
Amblycera

15. Among the more famous Anoplura
Phthirus pubis -crab lice

16. Among the more famous Anoplura
Head and body lice - Pediculus humanus

17. Lice Infestation

18. Hexapod Orders Thysanoptera Thysano - fringed, ptera - wing
Number of Species
4500
Common names
Thrips
Typical habitats
Vegetation (flowers)
Distinguishing characteristics
-fringed wings
Other features
-haploid/diploid

19. Thysanoptera Mouthparts
a. Labrum
b. Mandible
c. Food canal
d. Maxilla
e. Hypopharynx
f. Salivary canal
g. Labium

20. Thysanoptera - wings

21. Thysanoptera - Life cycle

22. Thysanoptera - Plant Damage