A dragonfly has a life span
of more than a year, but very little of that life is actually as an adult
dragonfly. There are three stages of the dragonfly life cycle, the egg, the
nymph, and the adult dragonfly. Most of the life cycle of a dragonfly is lived
out in the nymph stage and you don’t see them at all, unless you are swimming
underwater in a lake or pond with your eyes opened, of course.
The Egg Stage
A male and a female
dragonfly will mate while they are flying in the air. After two dragonflies
mate, the female dragonfly will lay her eggs on a plant in the water, or if she
can’t find a suitable plant she will just drop them into the water.
The Nymph Stage
Once the dragonfly eggs
hatch, the life cycle of a dragonfly larva begins as a nymph. A nymph looks
like a little alien creature. It hasn’t grown its wings yet and has what looks
like a crusty hump hanging onto its back. Dragonfly nymphs live in the water
while they grow and develop into dragonflies. This portion of the dragonfly
life cycle can take up to four years to complete, and if the nymph cycle is
completed in the beginning of the wintertime, it will remain in the water until
spring when it is warm enough to come out.
Dragonfly nymphs live in ponds or marshy areas because the waters are calmer than in a stream or river. Sometimes they can be found in the calmer backwaters of rivers, too.
Dragonfly nymphs live in ponds or marshy areas because the waters are calmer than in a stream or river. Sometimes they can be found in the calmer backwaters of rivers, too.
The Adult Dragonfly Stage
Once the nymph is fully grown, and the weather
is right, it will complete the metamorphosis into a dragonfly by crawling out
of the water up the stem of a plant. The nymph will shed its skin onto the stem
of the plant and will then be a young dragonfly. The skin that the nymph left
behind is called the exuvia and you can find the exuvia still stuck to the stem
for a long time after the dragonfly has left it.
Once the dragonfly leaves the exuvia it is a full grown dragonfly. The dragonfly
will hunt for food and begin to look for a mate. Once the dragonfly finds a
mate, the female will find a body of calm water that will be a good place to
lay her eggs, and the life cycle of the dragonfly begins all over again. Adult
dragonflies only live about two months.
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