Category: spiders (Page 9 of 14)

International Rock Flipping Day: Results 2011

Did you flip a rock today? Below are photographs of what I discovered. As soon as I get linked up with Wanderin’ Weeta, I will post a list of the participants so you can see what everyone found.

The rocks:

A pile of what we call “river rocks” used to stabilize a drainage area. This particular area is mowed grass, so it is irrigated often.

You would expect to find an isopod (also called rolypoly or pillbug), after all there’s one on the International Rock Flipping Day badge.

But what is that with the isopod?

What is that brownish coiled object in the lower right of the photograph?

It is a tiny snail! There’s another with its head out.

It’s blurry, but definitely a snail. Finding snails is amazing in this hot, dry climate.

The snail wasn’t the only one carrying it’s house.

What is the gray object that looks like a small tube of mud? It is moving!

There is some sort of insect larva inside.

I think it is a beetle larva carrying a case. It is most likely a member of the leaf beetle family (Cryptocephalinae). It probably got washed to the drainage area during a recent storm.

Another tiny beetle scurries away.

Mites were common. Here’s a brightly colored one.

Spiders were also abundant. This tiny jumping spider seems to have its eyes on something.

Maybe it was trying to catch one of these Indian house cricket nymphs.I don’t envy any predator that hunts these.

I know I had trouble capturing them with my camera. The springtails that were everywhere were even worse. I never did get a photograph of them.

Finally, I did find some ants. I posted those results at Wild About Ants.

Overall, I was pleasantly surprised by the number of creatures I found. And in addition to finding different kinds, I also learned a little bit more about my neighbors that live under rocks.

Did you flip any rocks this weekend? What did you find?

For more information about the creatures featured here try:

Isopods

Indian house crickets

Jumping spiders

Mites

Snails and raising snails

Bug of the Week: Yellow Crab Spiders

This summer in the Colorado Rockies we encountered a number of different yellow flowers.

Some of those flowers were “decorated’ with yellow crab spiders.

Crab spiders are named for the way their front legs direct forward, like a crab.

They are known for their ability to change color to match the flower they are sitting on. Obviously this one had been recently sitting on a yellow flower.

The color change isn’t to fool their prey, however. Crab spiders like this one often glow ultraviolet, a color we can’t see but insects like bees can see. Why do you think that crab spiders are visible to insects, but try to match the flower to vertebrate eyes?

Watch out flower fly!

Bug of the Week: Bugs in the News

“Bugs” are in the news this month.

First of all, Gregory Vogt stopped by to let us know how the Spiders in Space were doing:

“The spiders made it to orbit Monday morning. The Space Shuttle Endeavour will rendezvous and dock with the International Space Station Wednesday morning. The spiders will be unstowed from Endeavour and transferred to the station Thursday morning. We should have the first pictures available for viewing by the weekend. Check out http://www.bioedonline.org.”

Should be interesting to see how the spiders do in space.

Periodical cicadas are also in the news. There is a large emergence of thirteen year cicadas, Magicicada tredecim, across the southeastern United States right now. They are called thirteen year cicadas because they stay underground as nymphs for thirteen years.

Have you ever seen an adult cicada emerge? Here is a time lapse video that shows the process.

Edit: At the request of readers, I have removed the video because of the noise. You can watch it at Mark Dolies’ link.

Video by Mark Dolejs (click the link to see how he made the video).

BugGuide has some good still photographs and more information.

Related posts:
Summer Sounds
Every Seventeen Years at Stop the Ride

Have you ever seen/heard periodical cicadas?

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