THE INSECT HEAD AND ITS APPENDAGES - PowerPoint PPT Presentation

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THE INSECT HEAD AND ITS APPENDAGES

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Sulcus - a groove - line of strength. Suture - where two sclerites ... in a grasshopper -a dicondylic joint -emphasize strength over mobility. Cardo. Stipes ... – PowerPoint PPT presentation

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Title: THE INSECT HEAD AND ITS APPENDAGES


1
THE INSECT HEADANDITS APPENDAGES
2
http//www.cals.ncsu.edu/course/ent425/tutorial/in
dex.html
An good web site for insect anatomy
3
Head Capsule
Neck
Mouthparts
4
Some general terms
Sulcus - a groove - line of strength
Suture - where two sclerites meet - line of
weakness
5
Head Segmentation
6
Insect Heads
3 basic types
Prognathous
?
?
Hypognathous
Opisthorhynchous
7
Insect Head
Occiput
Compound Eyes
Ocelli
Frons
Gena
Clypeus
Mandible
Labrum
1st Maxilla
Labium (2nd Maxilla)
8
Insect Mouthparts
Labrum
Mandible
Hypopharynx
1st Maxilla
Labium (2nd maxilla)
9
Insect Mouthparts
Labrum
-upper lip
- contains chemosensory sensilla
10
Insect Mouthparts
Molar surface
Mandible
Incisor surface
11
Insect Mouthparts
Mandible
- in a grasshopper -a dicondylic joint
-emphasize strength over mobility
12
Insect Mouthparts
1st Maxilla
Cardo
Stipes
Palp
Lacinia
Galea
13
Insect Mouthparts
Labium (2nd Maxilla)
Submentum
Mentum
Prementum
Glossa
Palp
Paraglossa
can be fused to form a Ligula
14
Comparison of 1st and 2nd Maxillae
Cardo
Stipes
Submentum
Mentum
Palp
Lacinia
Prementum
Glossa
Palp
Paraglossa
Galea
15
Hypopharynx
Labium
Salivarium
Hypopharynx
Cibarium
Cibarium
16
(No Transcript)
17
Modifications of Mouthparts
-Piercing and Sucking
Front
Mandibles
Maxillae
Channel for food
Back
Channel for saliva
18
Modifications of Mouthparts
Sponging
e.g. housefly
19
Modifications of Mouthparts
Siphoning
e.g. butterfly
20
Modifications of Mouthparts
Stabbing
e.g. Mosquito
21
Modifications of Mouthparts
Cutting and Sponging
Labrum
Mandibles
Hypopharynx
Labellum
Maxillae
e. g. deerflies
22
Modifications of Mouthparts
23
Head Capsule
Neck
Mouthparts
24
Tentorium - internal support for the head capsule
Posterior arms
Anterior arms
Dorsal arms
Cut away view of the head capsule
25
Insect Antenna
Antennal sclerite
Antennal socket
Pedicel
Flagellum
Antennal suture
Antennifer
Scape
26
Insect Antennae
Monoliform
Aristate
Pectinate
Capitate
Plumose
Clavate
Serrate
Filiform
Geniculate
27
Insect Antennae
Monoliform
Aristate
Capitate
Pectinate
Clavate
Plumose
Filiform
Serrate
Geniculate
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