Transcript Locusts_Introduction_to_Lesson_21

Cicadas
or
Locusts
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Most 17-year cicadas have red eyes.
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17-year cicadas will hatch in West Virginia in 2012
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People eat cicadas, and wild animals and
domestic pets eat them, too.
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Cicadas don’t eat solid food, but they use
their slender, straw-like mouth parts
to drink tree fluids.
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Only males make the sound for which they are
famous.
On their abdomens they have tymbals.
Muscles pop the tymbals in and out
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There are also 13-year cicadas.
They re-emerged in 2011.
Here are some maps that show
how they are distributed.
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The nymphs emerge on a spring evening when the
soil temperature at about 8 in depth is above 63° F.
In most years this works out to late April or early
May in far southern states, and late May to early
June in the far northern states. Emerging nymphs
climb to a suitable place on the nearby vegetation to
complete their transformation into an adult cicada.
They molt one last time and then spend about six
days in the leaves waiting for their exoskeleton to
harden completely. Just after this final molt, the
adults are white but darken within an hour.
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After mating, the female cuts V-shaped
slits in the bark of young twigs and lays
approximately 20 eggs in each, for a total
of 600 or more eggs. After about six to ten
weeks, the eggs hatch and the newborn
nymphs drop to the ground, where they
burrow and begin another 13 or 17-year
cycle.
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Locusts
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The largest known locust swarm covered 400 square
miles and contained approximately
40 billion insects.
Since a locust (which is really a grasshopper)
eats the equivalent of his own weight in a day,
a swarm can easily eat as much as 1000 people.
The desert locust is about 3 inches long.
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Grasshoppers are usually solitary insects, feeding
alone, but when too many get in one place, they
swarm.
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What creatures did God use as plagues
in Egypt?
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Frogs,
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lice,
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flies,
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and locusts!
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Some people think cicadas and locusts
are alike, but they are not.
Cicadas have no teeth and do not eat plants,
but locusts do.
They are two creatures that look
somewhat alike, but are not.
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Peace is like that, too. There are two different
kinds of peace that seem alike on the surface.
One peace comes from Jesus--“My peace I leave
with you, my peace I give unto you” (John 14:27).
Another peace comes from compromise--“If you
were of the world, the world would love his own”
(John 15:19).
But they are not the same.
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Credits:
Slide 27 courtesy of FAO United Nations
Slide 30 courtesy of James Lee at flickr
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