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Meet Sasha, (a barn spider or garden orb-weaver
Neoscona hentzi),
who moved into our garden - I'm not sure where the name barn spider comes from
unless they are seen with high frequency in barns. Here in Charleston,
these spiders appear in gardens and protected areas.
(Chick Gaddy recently (Jan 14, 2006) suggested that Sasha was likely to be
Neoscona hentzi or N. crucifera not Araneus cavaticus because
of her prolific hair. Sure enough, I checked some Google images of
N. hentzi and I believe he is correct - thanks Chick!).
Sasha is interesing, of course. She has quite different web behavior
when compared with
Natasha, our golden silk spider from last year.
Each morning since I found Sasha, a garden orb-weaver
(july 3rd) I have noticed that the
web is in place in the early morning, but by mid afternoon it is gone. The
next morning, the web has been replaced with a new web.
She has quite a literary heritage and was the subject in E.B. White's book,
Charlotte's Web.
The web is called
an orb web, like a wagon wheel with spokes radiating out from the center.
She weaves these spoke first, then weaves the circumferential elements as
a spiral, i.e. she weaves continuously around and around the center until she
is either finished or is disturbed.
(More recent observations (Sept 2003) its clear that she builds her
web in the early evening, usually within 30 minutes of twilight. In the
morning, the web of often, though not always, gone within 1 - 2 hours after
sunrise. Here you can find photos from night
as she builds her web and hunts. You can all see photos of how
she hides herself during daylight,
blending in almost perfectly with
pine straw and palmetto tree bark.
Here is a photo of Sasha (dorsal view) in the early morning, before she destroys
her web and retreats to the bushes for a quiet day. Excuse the focus
problem - the wind blows, the light is low and I have an unsteady
hand (sigh).
The silk is not very strong and its easy for rain or a mild wind to
destroy it. But Sasha is fearless, rebuilding the web in approximately
the same position each evening.
Here are some photos of Sasha and her web. She is about 1 cm long,
appears to have either 8 legs with one missing or 7 legs and a sort
or redish-orange color. She is a juvenile barn spider.
Several months later she appeared in the
front of our neighbor's home, but now was about 5 cm in length.
Here is a ventral view of her.
Here is my silk spinneret, for making silk. See the thin silk thread
that connects my spinneret to the top of the circle? (Click on this photo
for a close inspection of my spinneret. Do you know why my
silk is not as strong as the silk from my cousin,
Nephila clavipes?
It seems that Sasha builds her net for the evening crop of flying
food, then during the morning, destroys it. Hiding in the bushes, she
sleeps until
evening, when she starts the web rebuilding. Here
is a twilight photo that shows the launching position.
Visit my night photos --->
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