World of Insect Giants...
Giant
Butterfly
The largest winged insect in
the world is the Queen Alexandra Birdwing butterfly,
with females being the larger of the species having a wingspan
of up to 12 inches (30cm). Female Ornithoptera alexandra (the
scientific name for these giant butterflies) are not as brightly
colored as the exotic males, which have iridescent scales of green,
lavender, and blue. Not only are these magnificent creatures extraordinarily
beautiful, they are also very rare. Queen Alexandra birdwings
are found living only in remote jungles of Papua New Guinea.
Queen Alexandra birdwing butterflies
are truly an exotic species; they live in the tropical jungles,
they occur in only one location in the world, and they are highly
specialized with very specific adaptations to their native ecosystem.
Alexandras are rarely seen by people, even in their native habitat,
because they spend much of their short life span in adult form
(about 3 to 4 months) floating above the jungle canopy. Like all
butterflies, Alexandras do not have mouths with teeth, but rather
a straw-like "tongue' used for sipping nectar out of flowers.
They play an important part in their ecosystem, helping to pollinate
flowering plants that are out of the reach of other insects
and animals. Also, like many exotic species living in the tropics,
Alexandras are poisonous. They don't have stingers or fangs, but
their bodies contain highly toxic fluids that deter other animals
from eating them. The bright colors on the wings serve as a warning
to potential predators - "I taste really bad, and I'll probably
make you sick". Unfortunately, none of these adaptations
have made them resistant to humans. Deforestation in Papua New
Guinea is causing loss of habitat for these rare butterflies,
and their spectacular size and exotic beauty make them especially
attractive to people who collect butterflies and insects. Queen
Alexandras can no longer legally be collected from the wild because
they are a protected species.
This
gigantic moth is called a Hercules or Atlas Moth
and it has been known to grow up to 11 inches (27cm). Like the
Queen Alexandra butterfly, the Hercules moth is an exotic species
living in the tropical climates of Southeast Asia. The males and
females of this moth species have the same coloring and markings,
which are quite elaborate. The outer tips of the forewings have
the shape of a snake's head from the side, complete with an artificial
"eye". This is probably to scare off birds that might
consider eating the moth, but would have second thoughts if it
looked enough like a snake.
Is it a Moth or Is It
a Butterfly?
Some moths are so brilliantly
colored and fancy that it would be easy to confuse them with a
butterfly. The way you tell the difference between moths and butterflies
is; moths have very specialized antennae, which look feathery.
Butterfly antennae are thin, narrow, and generally end in a "club",
or swollen tip. When moths land, they hold their wings open and
folded over the back while resting, and they tend to be active
at night. Butterflies are usually active during the day, and when
they land to rest, they hold their wings erect and closed.
What
is a Giant walking stick..?.
Biggest
Ever
Scientists
have looked at fossil records dating back to the beginning of
earth and have found the largest insects
that ever lived existed during the time of the dinosaurs. The
biggest insect in prehistoric times was a dragonfly called Meganeura
monyi that had a wingspan measuring over three feet (1m).
The biggest dragonflies today only grow wings up to 8 inches (20cm)
across.