Head

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Dr Farman Ali

insect head

Science

http://www.cals.ncsu.edu/course/ent425/library/tutorials/index.html
A good web site for insect anatomy

Insect Head
Compound Eyes
Ocelli
Frons
Gena
Clypeus
Labrum
1st
Maxilla
Labium (2nd
Maxilla)
Mandible
Occiput

Insect Heads
3 basic types
?
?
Hypognathous
Prognathous
Opisthorhynchous

Insect Heads
Evolution of Prognathy
1. Hypostomal Bridge
2. Postgenal Bridge
3. Gula

Insect Mouthparts
Labrum
Mandible
1st Maxilla
Labium (2nd maxilla)
Hypopharynx

Labrum
Insect Mouthparts
-”upper lip”
- contains chemosensory sensilla

Mandible
Insect Mouthparts
Incisor surface
Molar surface

Mandible
Insect Mouthparts
- in a grasshopper -a dicondylic joint
-emphasize
strength over
mobility

Cardo
Stipes
Lacinia
Galea
Palp
Insect Mouthparts
1st Maxilla

Labium
(2nd
Maxilla)
Mentum
Prementum
Paraglossa
Glossa
Palp
can be fused to form a
Ligula
Insect Mouthparts
Submentum

Cardo
Stipes
Lacinia
Galea
Palp
Mentum
Prementum
Paraglossa
Glossa
Palp
Submentum
Comparison of 1st and 2nd Maxillae

Hypopharynx
Cibarium
Salivarium
Hypopharynx
Labium

Modifications of Mouthparts
Mandibles
Maxillae
Front
Back
-Piercing and Sucking
Channel for saliva
Channel for food

Modifications of Mouthparts
Cutting and Sponging
Hypopharynx
Labellum
Maxillae
Mandibles
Labrum
e. g. deerflies

Modifications of Mouthparts
Sponging
e.g. housefly

Modifications of Mouthparts
Siphoning
e.g. butterfly

Modifications of Mouthparts
Stabbing
e.g. Mosquito

Tentorium
- internal support for the head capsule
Cut away view of the head capsule
Anterior arms
Posterior arms
Dorsal arms

Tentorium
- internal support for the head capsule

Antennal
suture
Antennifer
Pedicel
Scape
Flagellum
Antennal
socket
Antennal
sclerite
Insect Antenna

Insect Antennae
Aristate
Capitate
Clavate
Filiform
Geniculate
Monoliform
Pectinate
Plumose
Serrate

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Head

1. THE INSECT HEAD AND ITS APPENDAGES

2. http://www.cals.ncsu.edu/course/ent425/library/tutorials/index.html A good web site for insect anatomy

3. Head Capsule Mouthparts Neck

4. Head Segmentation

5. Insect Head Compound Eyes Ocelli Frons Gena Clypeus Labrum 1st Maxilla Labium (2nd Maxilla) Mandible Occiput

6. Insect Heads 3 basic types ? ? Hypognathous Prognathous Opisthorhynchous

7. Insect Heads Evolution of Prognathy 1. Hypostomal Bridge 2. Postgenal Bridge 3. Gula

8. Insect Mouthparts Labrum Mandible 1st Maxilla Labium (2nd maxilla) Hypopharynx

9. Labrum Insect Mouthparts -”upper lip” - contains chemosensory sensilla

10. Mandible Insect Mouthparts Incisor surface Molar surface

11. Mandible Insect Mouthparts - in a grasshopper -a dicondylic joint -emphasize strength over mobility

12. Cardo Stipes Lacinia Galea Palp Insect Mouthparts 1st Maxilla

13. Labium (2nd Maxilla) Mentum Prementum Paraglossa Glossa Palp can be fused to form a Ligula Insect Mouthparts Submentum

14. Cardo Stipes Lacinia Galea Palp Mentum Prementum Paraglossa Glossa Palp Submentum Comparison of 1st and 2nd Maxillae

15. Hypopharynx Cibarium Salivarium Hypopharynx Labium

16.

17. Modifications of Mouthparts Mandibles Maxillae Front Back -Piercing and Sucking Channel for saliva Channel for food

18. Modifications of Mouthparts Cutting and Sponging Hypopharynx Labellum Maxillae Mandibles Labrum e. g. deerflies

19. Modifications of Mouthparts Sponging e.g. housefly

20. Modifications of Mouthparts Siphoning e.g. butterfly

21. Modifications of Mouthparts Stabbing e.g. Mosquito

22. Head Capsule Mouthparts Neck

23. Tentorium - internal support for the head capsule Cut away view of the head capsule Anterior arms Posterior arms Dorsal arms

24. Tentorium - internal support for the head capsule

25. Antennal suture Antennifer Pedicel Scape Flagellum Antennal socket Antennal sclerite Insect Antenna

26. Insect Antennae Aristate Capitate Clavate Filiform Geniculate Monoliform Pectinate Plumose Serrate

27. Insect Antennae Aristate Capitate Clavate Filiform Geniculate Monoliform Pectinate Plumose Serrate

Head

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