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Entomology 462 Insect Morphology

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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. Abdomen. Head. Thorax.

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slide1
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

slide2
External Morphology (grasshopper)

Antenna

Compound eye

Wing

Abdomen

Head

Thorax

slide5
Lubber Grasshopper Head

antenna

compound eye

ocelli

frons

mandible

clypeus

maxilla

labium

labrum

slide6
Lubber Grasshopper Thorax

pronotum

mesopleuron

spiracle

metapleuron

coxa

femur

tibia

trochanter

tarsus

slide7
Lubber Grasshopper Abdomen

abdominal tergites

cercus

spiracles

abdominal sternites

slide8
Insect Digestive System

Generalized Diagram (typical of grasshopper)

slide9
Insect Digestive System

Caterpillar Digestive System

Milkweed Bug Digestive System

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Insect Excretory System:

Malpighian Tubules

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Insect Respiratory System

Spiracles, Tracheae, Tracheal Trunks & Air Sacs, Tracheoles

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Insect Respiratory System

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

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