THE INSECT HEAD AND ITS APPENDAGES A good

THE INSECT HEAD AND ITS APPENDAGES A good

THE INSECT HEAD AND ITS APPENDAGES A good web site for insect anatomy http://www.cals.ncsu.edu/course/ent425/library/tutorials/index.html Head Capsule

Neck Mouthparts Head Segmentation Insect Head Occiput

Compound Eyes Ocelli Frons Gena Clypeus Mandible Labrum 1st Maxilla

Labium (2nd Maxilla) Insect Heads 3 basic types Prognathous ?

? Hypognathous Opisthorhynchous Insect Heads Evolution of Prognathy 1. Hypostomal Bridge

2. Postgenal Bridge 3. Gula Insect Mouthparts Insect Mouthparts

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

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

Molar surface Incisor surface Insect Mouthparts Mandible - in a grasshopper -a dicondylic joint -emphasize strength over

mobility Insect Mouthparts 1st Maxilla Cardo Stipes Palp Lacinia

Galea Insect Mouthparts Labium (2nd Maxilla) Submentum Mentum

Prementum Glossa Palp Paraglossa can be fused to form a Ligula

Comparison of 1st and 2nd Maxillae Cardo Stipes Submentum Mentum Palp

Lacinia Galea Prementum Glossa Palp Paraglossa

Hypopharynx Labium Salivarium Cibarium Hypopharynx

Modifications of Mouthparts -Piercing and Sucking Front Mandibles Maxillae

Channel for food Channel for saliva Back Modifications of Mouthparts Cutting and Sponging Labrum

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

e.g. housefly Modifications of Mouthparts Siphoning e.g. butterfly Modifications of Mouthparts

Stabbing e.g. Mosquito Head Capsule Neck Mouthparts

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

Tentorium - internal support for the head capsule Insect Antenna Antennal socket

Antennal sclerite Pedicel Flagellum Antennifer Antennal suture

Scape Insect Antennae Aristate Monoliform Pectinate Capitate

Plumose Clavate Serrate Filiform Geniculate

Insect Antennae Aristate Capitate Monoliform Pectinate

Clavate Plumose Filiform Serrate Geniculate

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