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Butterfly and
Moth Life Cycle
BUTTERFLY LIFE
CYCLE:
1. EGG -
The females of different species of butterflies and moths lay
tiny eggs on the plant their caterpillars will
like to feed on.
2. LARVA (Caterpillar) -
Tiny caterpillars of moths and butterflies soon
hatch out of each of the eggs. Once the caterpillars hatch
they eat their egg shell and then they feed on leaves from the
plant for a few weeks and grow. The caterpillars can
only nibble little bits of leaves because they are so tiny. They
eat all day long and every day of the week until they get bigger
and bigger. The more they eat, the bigger they grow and the bigger
they grow the tighter their skin gets until it gets too tight
and splits open. The skin splits all the way down and underneath
is a new skin that is bigger and the old skin is shed.
3. PUPA (Chrysalis)
- When the caterpillar reaches its full size,
it prepares to turn into a chrysalis or cocoon. Some caterpillars
attach themselves to a leaf or twig to form the pupa and certain
species spin a cocoon around the pupa. The pupa outer case is hard
and it stays still and inactive. But inside, the larva continues
changing its body shape into a butterfly or moth. The caterpillar
then metamorphosis (change/develop) into butterflies and moths.
4. ADULT (Butterfly/Moth) -
The pupa's case finally splits open from which the adult butterfly
or moth crawls out into the world. Their body, legs and wings spread
out, dry and harden and the butterfly life cycle and the moth life
cycle starts all over again. They are ready to find food and to
find a mate.
There are at least 125,000
known species in the world. These beautiful insects have four broad
or lanceolate (tapering to a point at the apex and sometimes at
the base) wings usually covered with minute overlapping often brightly
colored scales and whose larvae are caterpillars. The color
in a butterfly’s wings
does not come from pigment. The color is produced prism-like by
light reflected by their transparent wing scales. The four wings
are covered with fine gossamer scales. If you look through a magnifying
glass you would see that their scales look like the tiles on a
roof, they overlap each other and help to hold the wings together. If
you have ever held a butterfly you may have noticed the dust from
its wings on your fingers. The dust in thousands of these
scales.
Definitions
Insects are
any of a class of arthropods (as bugs or bees) with well defined
head, thorax and abdomen, only three pairs of legs, and typically
one or two pairs of wings. All insects begin their lives as small
eggs. When the eggs of butterflies and moths hatch
they do not look like their parents. This young stage is called
a larva, which is a caterpillar or grub.
Lanceolate is where the wings of an insect taper
to a point at the apex and sometimes at the base.
Lepidoptera which
means 'scaled wings' is any of a large order of insects comprising
the butterflies and moths.
Metamorphosis is
a marked and more or less abrupt change in the form or structure
of an animal occurring subsequent to birth or hatching. Caterpillars metamorphosis
(develop) into butterflies and moths.
Caterpillar/Larva is
the stage of development of an insect between egg and pupa, a caterpillar.
It is the immature, wingless, and often vermiform (worm-shaped) feeding
form that hatches from the egg of many insects. It alters chiefly
in size while passing through several molts, and is finally transformed
into a pupa or chrysalis from which the adult emerges. Because the
caterpillar’s skin
does not grow along with it, it periodically sheds the skin as it
becomes too tight. Most caterpillars molt
five times before entering into the pupa stage. A caterpillar has
three sets of mouth parts, 1. the jaw-like mandibles, they do most
of the work 2. the second pair pulls food into the mouth and 3. the
third set are joined together to form the lower lip.
Chrysalis is
the pupa of a butterfly that
passes the pupal stage in a resting condition enclosed in a firm
case. Caterpillars shed their final skin which is the pupa. It is
this outer skin that hardens to form a chrysalis which protects and
hides the transformation that is occurring inside. The chrysalis
looks like a dead leaf and therefore protects it from being eaten.
Cocoon is
an envelope often largely of silk which an insect larvae forms about
itself and in which it passes the pupa stage. The pupal case is commonly
called a cocoon. Butterflies do not spin
cocoons. Silk moths spin
cocoons of silken threads, often using leaves to help surround them.
Pupa is
a metamorphic insect in an intermediate (usually resting) form assumed
between the larval and the imaginal stages and characterized by internal
dedifferentiation of larva structures and their replacement by structures
typical of the imago. The pupae can take on a wide variety of shapes,
sizes and color. Some hang from beneath leaves or twigs and others
are attached to the side of a stem; some are smooth and shiny or
rough and spiky. But the primary function is to lessen the chances
of being eaten and to produce an adult butterfly or moth.
Pollinate is
to place pollen on the stigma or to mark or smudge with pollen.
Pollination is an important part of reproduction in plants. Pollination
can take place by the flowers releasing loads of tiny pollen
into the air, and the breeze carries it to other flowers or insects
such as
butterflies and moths land
on the flower to feed on the nectar and they get covered with
the pollen, the butterflies and moths then
flies away carrying the pollen to the next flower. Even
cactus flowers are visited by butterflies and moths.
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