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Definition of Monarch Caterpillar (Danaus plexippus)

Categorized under "General"

Definition as written by Joan:

The monarch butterfly is sometimes called the milkweed butterfly because its larvae eat the plant. In fact, milkweed is the only thing the larvae can eat!

Adult female monarchs lay their eggs on the underside of milkweed leaves. These eggs hatch, depending on temperature, in three to twelve days.

The larvae feed on the plant leaves for about two weeks and develop into caterpillars about 2 inches long.

After awhile, the caterpillars attach themselves head down to a convenient twig, they shed their outer skin and begin the transformation into a pupa (or chrysalis), a process which is completed in a matter of hours.

The pupa resembles a waxy, jade vase and becomes increasingly transparent as the process progresses. The caterpillar completes the miraculous transformation into a beautiful adult butterfly in about two weeks.

The butterfly finally emerges from the now transparent chrysalis.

It inflates its wings with a pool of blood it has stored in its abdomen. When this is done, the monarch expels any excess fluid and rests.

The butterfly waits until its wings stiffen and dry before it flies away to start the cycle of life all over again.

Most predators have learned that the monarch butterfly makes a poisonous snack. The toxins from the monarch's milkweed diet have given the butterfly this defense. In either the caterpillar or butterfly stage the monarch needs no camouflage because it takes in toxins from the milkweed and is poisonous to predators. Many animals advertise their poisonous nature with bright colors... just like the monarch!

Thumbnail of Monarch Caterpillar (Danaus plexippus) by Joan
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Definition as written by DonnaB:

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

beginning to pupate

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

new Chrysalis

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

1 week Chrysalis

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

2 week Chrysalis and ready to emerge

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

New Butterfly emerging

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

Newly Emerged Butterfly

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
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Definition as written by DonnaB:

Drying wings

Thumbnail of Monarch Caterpillar (Danaus plexippus) by DonnaB
(Click for full-size)


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