Monday, July 24, 2006

Cicada Moulting

As we gathered our things, preparing to decamp, Leiceshire Lilt took her pack off the tree and noticed a big brown bug drop. It landed on a black bag below the tree. She called out, Come see what a large bug!

We gathered around the thing and exclaimed, What an ugly bug. It had a huge head and four eyes. Bug Lady, who knew all about dragonflies, petted the bug's head. Then we made jokes about the bug being an alien.

The next time we looked at the bug, its head had separated into two. It was now a four-eyed, two-headed bug, one head on top of the other. That's when Bug Lady shrieked, This is not an alien, this bug is moulting.

We oohed and aahed around the bug. What is it? A giant cockroach? A junebug? Someone determined it was a cicada. Over the next two hours, we watched the bug's amazing process as it shed its old body and grew into a new one.

Here are the photographs Bug Lady took.

By the time we took the camera out and set it up, the bug had already come out half way. Note the tiny green things on its side.


Front view. It has come out some more.


Look how the green wings expand as it pushes itself out of its old body.


It is now mostly out.


It has fully detached from its old body and moves backwards.


It rests on its old body for a while. As it waits, its wings stretch.


See how its wings are almost full size and the bug's new shell is hardening.


A little while later, it walks over its over body and away...


...to inside the bag where it's protected. It hangs upside down, probably to let its wings dry and to wait for its new shell to harden some more.


Here's the discarded body.


Later, Bug Lady put it on the tree. See the camouflage.

4 comments:

PP said...

What an amazing series of images to capture. Where were the wings on the old body? I love the first picture, the one that looks like a spirit rising from a dead body.

Those images make me feel like Kid2. Both fascinated and scared at the same time. Really wonderful. Thanks for posting them.

Anonymous said...

Did you know that while in the Nymph stage (wingless) a Cicada can live up to 17 long years underground before finally surfacing to shed it's skin and transform into it's adult form. After all of this, it will only live another 2 to 6 weeks....just long enough to sing and mate.

The Sylph said...

It's weird to think of a 17-year-old bug that lives underground as a nymph.

Anonymous said...

Not if you're the parent of teenagers it's not.