07InsectAnatIIS08

07InsectAnatIIS08 - fibers • Groundplan of six veins – Anterior • Costa never branches • Subcosta branches sometimes into two – Radius

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1 Announcements Field trip to Pepperwood this Sunday. Meet at SSU at 9:00 am. Will last until 4:30 or so, bring sack lunch and water if interested Exam on Monday Will cover material since first lecture Emphasis on topics and terms covered in lecture and study guide Legs Legs
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2 Pretarsus Leg Adaptations Leg Adaptations
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3 Leg Adaptations Legs wings • Usually fully developed only in adult • Flap-like projections of cuticle with tubular, sclerotized veins • Primitively 2 wings to metathorax and two to mesothorax • Hindwings – Tend to be smaller – Sometimes only functional wings • Modified in flies to halteres
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4 Wings Supported by tubular veins with tracheae, blood vessels, nerve
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Unformatted text preview: fibers • Groundplan of six veins – Anterior • Costa- never branches • Subcosta- branches sometimes into two – Radius – Media – Cubitus – Anal • Cells are areas defined by veins – Open- extend to margin – Closed- surrounded by veins • Veination often genus or species specific Wings Wings 5 Variation in wing morphology Membranous wings Orthoptera 6 Coleoptera Hemiptera Lepidoptera 7 Abdomen • Least tagmatized body region • Large and conspicuous spiracles • First seven segments progenital Primitive condition has appendages Left: aquatic insect Right: ancient vs modern insect...
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This note was uploaded on 03/02/2012 for the course BIOLOGY 323 taught by Professor Rank during the Spring '08 term at Sonoma.

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07InsectAnatIIS08 - fibers • Groundplan of six veins – Anterior • Costa never branches • Subcosta branches sometimes into two – Radius

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