Buggin' Out On Thursdays :: I've Got Spines but no Backbone

Spiny Orb Weaver by biologie-me.blogspot.com © 2010

The Spiny Orb Weaver, also called the spiny backed orb weaver, is known in Texas as a beneficial spider for the garden because they eat flies and mosquitoes.  A lot of people refer to these spiders as "crab spiders", however, they are actually orb weavers.  They make the beautiful circular spiderwebs that catch the morning dew. 

These little spiny spiders may look spooky but they are not considered dangerous.  While hiking in the woods outside Austin you may come across these guys in abundance!  They usually like to spin their webs in forested areas although they can be found anywhere - like on my canna lilies in my backyard where I found this one!  She would spin her web between the leaves of the lilies.  I visited her daily while I watered my flowerbed and missed her when she disappeared.

The spiny backed orb weavers have six pointed projections on their back, commonly referred to as "spines" and are very easily identified by this characteristic, as well as the patterned "face-shaped" coloring which can be white, yellow, orange, or red.  Some of these spiders have a white pattern with red spines. 

Buggin' Out On Thursdays

If you've been following my blog you may remember Peaches (a true crab spider) and my post on the Western Spotted Orb Weaver (also a true orb weaver like our little spiny backed friend).

  What kinds of bugs have you seen lately?

Buggin' Out On Thursdays :: A Little Side Tour

It's Buggin' Out On Thursdays!

Buggin' Out is a weekly blog post about the creepy crawlies in my life. I like bugs and love to take macro photos of the ones I find in my backyard (and occasionally a few home invaders like Peaches The Crab Spider). I try my best to identify and research the insects I photograph and share all the Bug Wonderfulness with you. It's a virtual bug collection! This house is a no squish zone and most pests are "released back into the wild", i.e., moved outdoors using the glass jar, paper magazine technique of which I am an expert at these days!

Today, I'm going off the grid a little bit. The theme is still bugs, of course, but these are made of metal. My mom and dad gave me a little basket of goodies for Valentine's Day which included a cute bee and butterfly tea light holder set plus a heavy iron FLY! I named him Frederick and he's currently my most favorite paperweight of all time. I thought it was cute that my mom picked these out for me in lieu of my new hobby and this weekly blog series.

Frederick The Iron Fly

What kind of bugs have you seen lately?

Buggin' Out On Thursdays :: Crabby Spider Promises She's Not Shelob's Sister

Peaches The Ground Crab Spider

Xysticus species

"Don't squish me! I look wicked like Tolkien's Shelob but I'm not interested in biting you or Frodo!"

I was sweeping the kitchen floor the other day when I looked down at my little pile of dirt and spied a very creepy looking spider. A little yelp of surprise escaped from my lips and I went into fight or flight mode for a second but the spider just sat there quietly. From my vantage point I thought it might be a Mutant Giant Tick like one you'd see in an old Sci-Fi Flick! Yikes. Then I thought maybe she was Shelob's baby sister. Again, yikes.

Once I figured out the "thing" wasn't going to come skittering after me like a ravenous monster it didn't take long before I had slipped a sheet of paper under her and placed a glass jar carefully over her so I could get a closer look. The spider remained very still. Not long after that and I had removed the jar and started taking macros so I could run to BugGuide.net and see what everyone thought about my new "bug".

Mandy at BugGuide was very helpful - she's Spiderwoman! She mentioned the star of today's blog post is a spider whose species has not yet been identified in the guide. My spider and the rest of her species are a uniform peachy red (in low light she may even look brownish until you get her out in the sun). I learned the only way to truly identify a spider at the species level is to have an entomologist study the adult spiders "private parts". The appropriate term for this on a female spider is the epigynum (to learn more check out this short article at Museum Victoria). I sure wish I had taken some underbelly shots of my buddy, Peaches, so I could help identify her species for the guide. Maybe next time!

Here are four fast facts about ground crab spiders:

• They are not poisonous to humans
• They aren't normally found in the home and hunt outdoors
• Rather than spin a web, they lay in ambush for prey to pass by
• Crab spiders can walk forwards, backwards, or sideways - just like a crab!

It's Buggin' Out On Thursdays!

What kind of bugs have you seen lately?

Buggin' Out On Thursdays :: A Green Lynx Spider Pounces Into The Virtual Bug Collection

It's Buggin' Out On Thursdays and I love this pretty spider! Yes, I think he's pretty. Greens, yellows, black polka dots, and crazy wicked looking hairy bristles on the legs. Awesome.

Green lynx spiders (Peucetia viridans) are a very welcome addition to my gardens. One little green spider up close in the macro lens brings a whole new world to life! I never knew this guy had transparent yellow legs with black spikes! I found my little buddy living in the foliage of my squash plants waiting for prey. I get these spiders in my gardens every year.

Like most anybody, green lynx spiders will bite you if provoked but are generally harmless to humans. Interestingly, in addition to injecting venom into their prey with their fangs they are capable of spraying venom from them as well. They eat insects that destroy crops like moths who feed on cotton. Unfortunately they don't discriminate if a bee or other beneficial pollinator happens to come around while they are hunting.

These spiders hunt during the day and roam low foliage, herbs and shrubberies. They can "pounce" on their prey when they come across something worth eating. They don't have a web but they can spin silk and use it as leverage or as a safety line when moving from one plant to another.

The species name, viridans, is Latin for "becoming green". The spider inspired me to make these earrings entitled "Green Lynx. Love Her. A pair of Peucetia viridans earrings" and they are part of my Mother Earth Collection @ Etsy.

They'd be wonderful for St. Patty's Day, yes? Unless of course you like getting pinched!

Buy the earrings here!

Buggin' Out on Thursdays :: Western Spotted Orbweaver Spider joins the Virtual Bug Collection

Don't be scurred. I'm beneficial!

On a breezy Fall day I grit my teeth and try not to freak out while I bend, stretch, and strain to take photographs of the black spotted yellow spider bouncing on it's web in the gusts of wind.

Large spiders are pretty high on my freak-out factor but I suppose my love of life, nature and - well, bugs - transcend any major squeamishness as long as I'm just photographing. Finding a spider crawling on me is an entirely different matter and ends up in the dance otherwise known as "arachnid-induced flailing with various shouts and high pitched yelps of surprise" until it is flung off (hopefully unharmed)! That particular dance is exactly what I would have done if this spider jumped off it's web onto my camera. Luckily, these types of spiders are shy and their bite may be painful but it's non-toxic to humans. I understand that they will bite you if harassed (and in that case I don't blame them one bit)!

I found this spider making her web low to the ground in the afternoon by my honeysuckle vine. I went out to check on her a few days later and she was hiding up in the leaves of the honeysuckle. She was still attentive and attached to a new web with a little line of silk, waiting for prey. I guess she thought more bugs would get caught in her net if she hid on the side of the web rather than right smack in the middle.

With the help of the ID Request feature on BugGuide.net I found out my spider is a Western Spotted Orb-weaver, Neoscona oaxacensis, and is indeed female. Apparently males don't have such bulbous bootys. A famous female weaver of the orb is Charlotte from the book Charlotte's Web by American author E. B. White. My mom used to read this to me and it is a beloved book from my childhood. Doing a little research I found out that Charlotte is a barn orb-weaver spider known as Araneus cavaticus.

Gorgeous big round spiderwebs spun in what is commonly thought of as the classic spiderweb shape are made by orb-weavers. A fitting name! If only I had taken a picture of the pretty round spiderweb in the morning, dripping with dew.

Interestingly, some orb-weavers do not build webs at all but instead dangle a sticky globule on a strand of silk from their front legs. The glob is covered in a scent to attract male moths which come looking for a female and instead find themselves bitten and subsequently eaten. Yikes!

What kind of bugs have you seen lately?