Insect body plan
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Incomplete metamorphosis
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Complete metamorphosis
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Crustacean body plan
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Coleoptera (Beetles)
• 400.000 species.
• First pair of wings changed into hard (chitin) shells. Second pair of wings need to unfold for flying as shells open up.
• Strong jaws to chew different kinds of food.
• Complete metamorphosis.
Lepidoptera (Butterflies)
• 180.000 species.
• Both pairs of wings covered with light breaking (skin)flakes producing brilliant colours schemes.
• Long, wound-up, tube-shaped “tongue”.
Hymenoptera (Wasps, Bees)
• 130.000 species.
• Two pairs of thin, see-through wings.
• Some species live in large strutured societies.
• Have defensive, poisonous stings.
• Complete metamorphosis.
Diptera (Flies)
• 240.000 species.
• One pair of wings. Second pair often changed into balancing organs.
• Food is digested outside the body and sucked in.
• Many flies imitate wasps and bees.
• Complete metamorphosis.
Orthoptera (Grasshoppers)
• First pair of wings changed into tough covers.
• Strong jaws to chew plant material.
• Some species are able to communicate with sound.
• Incomplete metamorphosis.
Arachnida (Arachnids)
• 100.000 species.• Spiders, scorpions,
ticks and harvestmen.• Often poisonous and
carnivorous.• Others, ticks, are
parasites.
Crustacea (Crustaceans)
• 50.000 species.
• Strong pincers work like scissors and cut off pieces of food.
• Have gills for breathing
• Two main body plans: “crab” and “lobster”