The New Childrens Encyclopedia

(Marvins-Underground-K-12) #1
INCREDIBLE INSECTS

115


  1. EGG LAYING Insects
    reproduce by laying eggs.
    After mating, a female
    ladybug lays her eggs on a
    leaf. About a week later, the
    larvae emerge.

  2. ADULT The new adult’s
    wing cases expand and
    harden into a protective
    shield. The color darkens
    and the distinctive ladybug
    spots appear. The
    cycle can now
    begin again.

  3. HATCHING The
    larvae look nothing
    like their parents!
    They have a soft
    body covering,
    called a cuticle,
    which soon
    hardens and
    turns dark.

  4. GROWING The larva
    must eat lots of food to
    grow. Over about four
    weeks it will kill and eat
    hundreds of sap-sucking
    aphids.

  5. PUPATING When the
    larva is ready to pupate, it
    fixes itself to the underside
    of a leaf and sheds its skin,
    revealing a soft cuticle
    underneath. This “pupal
    cuticle” takes about a week
    to turn hard and dark. The
    larva does not move during
    this time.

  6. EMERGENCE
    A week later, the pupal
    cuticle splits open and a
    new adult ladybug crawls
    out. To begin with, its body
    and wing cases are soft
    and lack the typical
    bright color and spots.


LADYBUG LIFECYCLE


IS IT A BEE OR WASP?


O There are about 20,000
bee species.
O Social bees live in colonies in
nests made of beeswax.
O Bees feed on nectar and
pollen from plants.
O Bees have hairier bodies
than wasps.
O A bee can sting only once—
the sting is ripped out of the
bee’s abdomen and left behind
in the victim. The bee will die
soon after.

O There are around 75,000
species of wasp.
O Social wasps live in nests made
out of paper, which they make by
chewing wood.
O Wasps eat other insects.
O Wasps are more brightly colored
than bees.
O A wasp’s sting can be used many
times. Like bees, only females have
a stinger. It is adapted from her
ovipositor—the tube through which
she lays her eggs.

Bees feed on nectar... ... but wasps eat other insects.

Warning colors
Many insects protect
themselves from predators
by storing toxins in their
bodies. They then warn
predators by displaying
bright colors, usually red,
orange, or yellow.
Monarch and viceroy
butterflies, which look
similar, both benefit from
a color and pattern that
say “I taste really bad!”

Insect camouflage
Another great way of
avoiding being eaten
is to make yourself
invisible. Many insects
are masters of disguise,
able to hide in full view
of predators by blending
in perfectly with their
background. Can you
spot this moth?
Rustic sphinx moth Manduca rustica

LIVING WORLD

Monarch
Danaus plexippus

Viceroy
Limenitis archippus

There are many differences between these similar-looking insects.

(c) 2012 Dorling Kindersley. All Rights Reserved.(c) 2012 Dorling Kindersley. All Rights Reserved.
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