1Entomology 462Insect MorphologyDavid J. Shetlar, Ph.D.The “BugDoc”The Ohio State University,OARDC & OSU ExtensionColumbus, OH© October, 2004, D.J. Shetlar, all rights reservedExternal Morphology (grasshopper)Head ThoraxAbdomenAntenna Compound eye Wing2Lubber GrasshopperLubber Grasshopper3antennacompound eyefronsclypeusocellilabrummandiblemaxillalabiumLubber Grasshopper HeadpronotumcoxatrochanterfemurtibiatarsusspiraclemesopleuronmetapleuronLubber Grasshopper Thorax4abdominal tergitesabdominal sternitescercusspiraclesLubber Grasshopper AbdomenInsect Digestive SystemGeneralized Diagram (typical of grasshopper)5Insect Digestive SystemCaterpillar Digestive System Milkweed Bug Digestive SystemInsect Excretory System:Malpighian Tubules6Insect Respiratory SystemSpiracles, Tracheae, Tracheal Trunks & Air Sacs, TracheolesInsect Respiratory SystemCana lily skipper (a butterfly) larvae have an almost completely transparent exoskeleton, thereby allowing a good view of the tracheal system.7Insect Respiratory SystemInsect Nervous System8Insect Nervous SystemInsect Muscular System9Insect ExoskeletonInsect Reproductive
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