Butterflies & moths are a group of insects
called Lepidoptera.
Like all insects, butterflies & moths have a head,
thorax, abdomen, two antennae & six legs. Moths & butterflies
have four wings that are almost always covered by colored scales &
a coiled proboscis for drinking liquids such as flower nectar. There
are exceptions; some moths have wingless adults & some primitive moths
lack a proboscis. Generally butterflies are brightly colored & fly
around during day light hours. Moths tend to be "brown" & are
attracted to light at night.
Lepidoptera is derived from the Latin words
"lepido" = scale + "ptera" = wing.
Butterflies & moths are
found on all continents except Antarctica. There are approximately 12-15,000
species of butterflies & 150-250,000 species of moths.
There are more than 20 butterflies & moths listed
as endangered by the U.S. Fish & Wildlife Service. Most
of these species may become extinct due to loss of their habitat.
Butterfly & moth wings are made of thin layers
of chitin--the same hardened protein that makes up their outside body--&
are covered with thousands of tiny scales that lend color to the wings.
The wings are strengthened by a system of veins. The wings have to be strong
enough to support the body in the air, but still flexible enough for flight
movements.
The colors of butterfly & moth wings may serve
several purposes. Colors are often used in courtship, so that male
& female butterflies recognize each other as the same species.
Bright colors may also warn birds or other predators that a particular
butterfly, such as a Monarch, is bad-tasting. Other butterflies &
moths, although perfectly edible, may have colors that "mimic" the bad-tasting
species. Finally, certain color patterns may help the butterfly or
moth blend into its background & be protected from birds or other would-be
predators by "background resemblance."
Butterflies use the strong muscles in their thorax
to force their wings up & down on a fulcrum basis so they can fly.
Their wings go in a slanted figure 8 motion that propels them forward through
the air in the same principle as an airplane.
Caterpillars are the eating
and growing stage for the butterfly, but they cannot mate & reproduce.
The adult butterfly is both the mating & egg-laying stage of the beautiful
insect. Also adult butterflies can disperse by flight, sometimes
long distances, to either colonize new areas with fresh plants for the
caterpillars or even migrate long distances to escape freezing winters,
such as Monarchs flying to Mexico or coastal California for the winter.
Cocoons, a stage in the moth life cycle, are pretty
tough as long as nobody squeezes them. Handle them carefully by the silk
part. Don't handle a chrysalis though, the butterfly's metamorphic stage.
They are much more delicate.
Medium to large butterflies can be safely handled &
released by persons who know how to do it. Butterflies can be fatally
damaged by being handled improperly. If the vein on the front wing
if broken will cause the butterfly to be flightless evermore. Their
internal organs can also be injured.
Different butterfly species have different adult potential
life spans. An average butterfly species has an adult life span of
2 weeks or less. Adult butterflies can not live more than a year. Monarchs
& Swallowtails may live about a month in the summer, but the Monarchs
that migrate to Mexico or the California coast may live up to 6 months.
The best way to "catch" a butterfly or moth is to raise
it from the caterpillar stage. Then when the butterfly or moth hatches
out you can observe it & then let it go. Some stores provide
kits that have a net with them & you can go into fields or mountains
to catch butterflies or moths.
Photographing a live butterfly in nature can be more
challenging than netting one & you can keep your "collection" in a
photo album, color slide tray or post them on the web.
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Butterflies & Flutterbyes
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