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THE INSECT HEAD AND ITS APPENDAGES
A good web site for insect anatomy
Head Capsule Neck Mouthparts
Insect Head Occiput Compound Eyes Ocelli Frons Gena Clypeus MandibleLabrum 1st Maxilla Labium (2nd Maxilla)
? ? Insect Heads 3 basic types Prognathous HypognathousOpisthorhynchous
Insect Heads Evolution of Prognathy 1. Hypostomal Bridge 2. Postgenal Bridge 3. Gula
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) can be fused to form a LigulaSubmentum Mentum Prementum Glossa Palp Paraglossa can be fused to form a Ligula
Comparison of 1st and 2nd MaxillaeCardo Stipes Submentum Mentum Palp Lacinia Prementum Glossa Palp Paraglossa Galea
Hypopharynx Labium Salivarium Hypopharynx Cibarium Cibarium
Modifications of Mouthparts-Piercing and Sucking Front Mandibles Maxillae Channel for food Back Channel for saliva
Modifications of MouthpartsCutting and Sponging Labrum Mandibles Hypopharynx Labellum Maxillae e. g. deerflies
Modifications of MouthpartsSponging e.g. housefly
Modifications of MouthpartsSiphoning e.g. butterfly
Modifications of MouthpartsStabbing 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 sclerite Antennal socket Pedicel Flagellum Antennifer Antennal suture Scape
Insect Antennae Monoliform Aristate Pectinate Capitate Plumose ClavateSerrate Filiform Geniculate
Insect Antennae Monoliform Aristate Capitate Pectinate Clavate PlumoseFiliform Serrate Geniculate
9. Arthropods Largest and most successful phylum in the animal kingdom. 85% of all animals! Exoskeleton made of Chitin (light/hard polysaccharide). Jointed.
Insects & crustaceans Donald Winslow Zoology 14 March 2008 Following Hickman et al., Integrative Principles of Zoology, 14 th edition. Ch 20 (pp.
Veterinary Entomology 208 Spring Today we will be using the grasshopper as a model insect: 1. Work in pairs 2. Read through the handout on external.
Introduction to Insects. Outline Insects and their relatives How insects rule the world Insect anatomy and biology.
(EE, pp ) Flies. Phylogeny of Hexapoda from p. 52 Diptera.
BIO 402: Field Biology Bumblebee on thistle Sumter National Forest May 2005.
Brachymyrmex 1) 9-segmented antenna 2) Eyes well developed.
Lesson# 2 – Insect Anatomy Unit: Entomology Ms. Gutierrez.
Who Am I?. Insects Phylum Arthropoda (means jointed foot) Class Insecta includes all the true insects Class Arachnida spiders, mites, ticks.
Introduction to Insect Biology and Diversity, 3/e James B. Whitfield / Alexander H. Purcell III Copyright © 2012 by Oxford University Press, Inc. CHAPTER.
Insect Anatomy. Classification PhylumClassOrderFamilyGenusSpecies.
Classes Diplopoda & Chilopoda
Insect. Insect Body Parts ab - abdomen an - antenna cpe – compound eye cr – circus epm – epimeron eps – episternum hd – head la – labium.
Insects Arthropods (segmented body, exoskeleton, and jointed appendages) Invertebrates Insects.
Insect outer morphology and structure of insect mouth parts
Ephemeroptera Characteristics Wing pads 1 claw on each leg (contrast with Plecoptera) 2-3 terminal segmented filaments (cerci) on abdomen Usually with.
Blueprint for Success Chapter 14 and 15. Modified segmentation – body regions specialized for specific functions (tagmatization). Chitinous exoskeleton.
Classification of Living Hexapod Orders
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