Entomology 462 Insect Morphology

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Presentation transcript:

Entomology 462 Insect Morphology David J. Shetlar, Ph.D. The “BugDoc” The Ohio State University, OARDC & OSU Extension Columbus, OH © October, 2004, D.J. Shetlar, all rights reserved

External Morphology (grasshopper) Antenna Compound eye Wing Head Thorax Abdomen

Lubber Grasshopper

Lubber Grasshopper

Lubber Grasshopper Head antenna compound eye ocelli frons mandible clypeus maxilla labium labrum

Lubber Grasshopper Thorax pronotum mesopleuron spiracle metapleuron coxa femur tibia trochanter tarsus

Lubber Grasshopper Abdomen abdominal tergites cercus spiracles abdominal sternites

Insect Digestive System Generalized Diagram (typical of grasshopper)

Insect Digestive System Caterpillar Digestive System Milkweed Bug Digestive System

Insect Excretory System: Malpighian Tubules

Insect Respiratory System Spiracles, Tracheae, Tracheal Trunks & Air Sacs, Tracheoles

Insect Respiratory System Cana lily skipper (a butterfly) larvae have an almost completely transparent exoskeleton, thereby allowing a good view of the tracheal system.

Insect Respiratory System

Insect Nervous System

Insect Nervous System

Insect Muscular System

Insect Exoskeleton

Insect Reproductive System