Powerpoint for LIS 416

1. Mrs. Howard
2nd grade

2. The tiny eggs reveal a variety of shapes
under a microscope
They are laid by the female on a plant,
and then are abandoned by the mother.
5 days later a small wormlike creature
will hatch

3.  The newly emerged
caterpillar has biting jaws,
six real legs plus a number
of extra 'prolegs' but no
compound eye.
 It gets to work quickly
devouring its food source
and shedding its skin in
order to grow. The skin
then falls off to reveal the
chrysalis or pupa.
 Some caterpillars spin a
cocoon first but most just
fasten themselves to a
plant with a silken thread.

4.  Although the pupa
outwardly looks like it is
at a state of rest, inside
it is a bubbling with
activity as the caterpillar
is literally liquefied, then
reassembled, over
about two to three
weeks, into a very
different creature.
 Some species hibernate
in this state, although
the transforming
chemistry is suspended
for most of the winter
period in this case.

5.  The first evidence of the
butterfly being ready to
emerge is the
translucency of the pupa
skin showing the coloring
of the wings beneath.
 When the skin of the pupa
splits, the limp, damp
butterfly crawls out - now
with compound eyes, six
legs, and proboscis for
feeding.
 A little warming in the sun
and its damp wings are
ready to fly off to feed and
mate.

7. Step 1: Adult butterfly
lays an egg.
Step 3: The caterpillar
forms the pupa.
Step 2: The egg
hatches into a
caterpillar.
Step 4: The pupa
matures into a butterfly.