Butterflies By: Hannah Lengacher

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Life Cycle of a Butterfly *Click on picture to find out more The First Stage: The Egg The Second Stage: The Larva The Third Stage: Pupa The Fourth Stage: Adult Butterfly

First Stage: The Egg Starts life as a very small, round oval, or cylindrical egg If you look close enough, you can actually see the tiny caterpillar growing inside Egg shape depends on the type of butterfly that laid the egg *Click Next for more information

First Stage: The Egg The eggs are laid on the leaves of plants In order to find them, you would have to look very hard at many different leaves

Second Stage: The Larva When the egg hatches, out comes butterfly larva which we call caterpillars Do not stay in this stage for very long and all they do is eat Once they eat, they instantly start growing and expanding. Their exoskeleton does not stretch or grow, so they grow by “molting” (shedding outgrown skin) several times *Click Next for more information

Second Stage: The Larva Once the egg hatches, caterpillars eat the leaf it was born onto because the mother butterfly needs to lay her eggs on the type of leaf the caterpillar will eat-each caterpillar type only likes certain types of leaves.

Third Stage: Pupa When a caterpillar reaches their full length/ weight, they form themselves into a pupa also called a chrysalis Inside of the pupa, the caterpillar is rapidly changing *Click Next for more information

Third Stage: Pupa Undergo transformation called metamorphosis Tissue, limbs, and organs all change *Click on link to view video!! http://www.youtube.com/watch?v=DKjG1vm5F84

Fourth Stage: Adult Butterfly When the butterfly first emerges both wings are soft and folded against its body After it comes out, it will pump blood into the wings in order to get them working and flapping Within a 3-4 hour period, the butterfly will master flying *Click Next for more information

Fourth Stage: Adult Butterfly Adult butterflies are constantly on the look out to reproduce Once this happens, the cycle starts all over again. *Click on link to view video! http://www.youtube.com/watch?v=Gt-5lS9hJFA

Butterfly Anatomy View each body part by clicking on the star next to it. *Go to Quiz!

Antennae Moveable, segmented organs used for detecting smells at the tips and structures for sensing direction and position. Antennae are used for the sense of smell and balance. Butterflies have two segmented antennae with a small club at the end of each. Larvae (caterpillars) have tiny sensory antennae

Thorax Contains flight muscles Anchor point for the legs Expansion and contraction of muscles causes the wings to rise and fall at rates up to 1,000 beats per second

Compound Eye Sensory organs on the head Good at detecting color and nearby movement Focus light onto a rhabdome (retina). Then the optic nerve carries this information to insect’s brain See ultraviolent rays

Proboscis Long, straw-like tube used for drinking When a butterfly finds food, it first unfurls its mouthparts and then zips them together to form a channel. The proboscis is particularly well adapted for reaching into flowers for nectar and for piercing fruit with its sharp tip. When a butterfly is not feeding, it keeps its proboscis curled between its palpi (which are a pair of organs located on the front of an adult butterfly face).

Head Location of its feeding and sensory structures Contains brain, 2 compound eyes, proboscis, pharynx (the start of the digestive system), and the point of attachment of its two antennae

Legs At the end of each six legs, all which are attached to the thorax, are taste organs used to find food Legs touch food, a reflex causes its proboscis to uncoil This lets the butterfly retrieve and swallow food Detects and amplifies small vibrations to alert butterfly when animals approach

Abdomen Once the butterfly swallows food, it is digested in organs located in the abdomen Segmented tail area of an insect (11 segments) An insect's abdomen contains its heart, Malpighian tubules, and reproductive organs It is protected by an exoskeleton

Hindwing Hind wings are the two lower wings Closer to the tails and are shaped like fans or seashells Colors and patterns come from layers of tiny scales. These scales protect wings and provide insulation Scales on top-brightly colored Scales underside-camouflage

Forewing Two upper wings Closer to butterfly’s head and are roughly triangular

Wing Veins Once butterfly emerges from the chrysalis, wings have to expand and dry. To do this, it uses its body as a pump and forces fluid trough a series of tube-like veins As the veins fill with fluid, they slowly stretch the surface of the wings

Anatomy Quiz #1. Where are the reproductive organs located in a butterfly? A. Thorax B. Legs C. Wings D. Abdomen

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Anatomy Quiz #2. What body part contains flight muscles? A. Legs B. Winged Veins C. Forewings D. Thorax

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Anatomy Quiz #3. What is a proboscis? A. Sensory organs on head B. Moveable, segmented, organs for detecting smells at the tips C. Long, straw like tubes used for drinking D. Detects and amplifies small vibrations

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Anatomy Quiz #4. Scales on top of the wing are usually what color? A. Brightly colored B. Camouflaged C. Darkly colored D. Brown

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Anatomy Quiz #5. What part of the body is used for taste organs to find food? A. Thorax B. Legs C. Antenna D. Proboscis

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Life Cycle Quiz True or False: The butterfly emerges in the Third Stage: Pupa T F

False: The butterfly emerges in the Fourth Stage: Adult Butterfly False: The butterfly emerges in the Fourth Stage: Adult Butterfly *Go back and try again!

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Life Cycle Quiz True or False: In the Third Stage: Pupa, caterpillars undergo a transformation called metamorphosis. T F

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Life Cycle Quiz True or False: In the Fourth Stage: Adult Butterfly, within a 1-2 hour period the butterfly will master flying. T F

False: Within a 3-4 hour period the butterfly will master flying False: Within a 3-4 hour period the butterfly will master flying. *Go back and try again!

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Life Cycle Quiz True or False: The butterfly starts as a caterpillar. T F

False: The butterfly starts as a very small egg *Go back and try again!

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Life Cycle Quiz True or False: The egg hatches in the Second Stage: Larva T F

The statement was true. The egg hatches in the Second Stage: Larva The statement was true. The egg hatches in the Second Stage: Larva *Go back and try again!

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You are done. You did a great job and I am so proud of you You are done! You did a great job and I am so proud of you! Feel free to go back through, if you need further help!