How did the butterfly metamorphosis develop
From caterpillar to butterfly: metamorphosis explained
It is strange in itself that these giant beetles form a cocoon at all, explains Richard Jones, a UK entomologist who is not affiliated with any university or organization.
"Most beetles don't build cocoons," says Jones. “They just squirm out of their last larval skin and pupate. Ladybirds fix themselves directly on a leaf. "
Other species, such as the North American firefighter Photinus pyralis, nest in the ground.
Some caddis flies build small tubes out of stones and shells in their native streams and rivers and pupate in them after they have sealed them. The larvae of honeybees resemble white worms that pupate in honeycombs sealed with wax. (How do honey bees know their job?)
Imago: Finally grown up
When a butterfly comes out of its pupa, it looks a little pathetic at first. Its wings are wet and take a few hours to dry and unfold before they are ready to fly. Hercules beetles already have their magnificent horns after breaking out of the cocoon. Caddis flies cut open their self-made tubes and swim to the surface for a final moult before they fly away.
(Clever bug tricks: faecal signs and building kits for the home.)
In general, the adults or adults do not live very long. Dragonflies, for example, only fly around for about a month before they die - in contrast, their larval stage lasts about three years.
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