I don't know if this is what you are looking for. There are 3 different ones. Scroll down to Spiderweb doily.
Is your story about the one that the lady is trying to clean and the spider comes out and decorates the tree? I'm trying to find one that I found years ago and made each one of our members a spider web to hang on their tree to remind them of the story. But, this story was about baby Jesus being born. I can't remember how it went and have never been able to find it.
Good luck with finding your pattern. That will make a very nice gift.

Yes that's the one but the pictures didn't come thru.

Here's the original story about the Christmas spider along with links to two other different versions----one about the baby Jesus not being discovered. Hope one of these is the version you are looking for.
The Legend of the Christmas Spider

A long time ago , a mother prepared for Christmas Eve.
She cleaned and scrubbed her home, chasing the spiders
from the living room with her broom. The spiders fled to
the attic and listened to the excitement below as the
Christmas tree was put up and decorated. When all was quiet again, the little spiders crept back downstairs to see the beautiful tree. They were filled with happiness as they crawled along every branch, admiring the glittering beauty of each ornament. But alas, by the time they had finished climbing through the tree, it was completely draped with their dusty, gray cobwebs.

When the Christ child came, He smiled as He looked upon the happy little spiders, however, He knew the mother would be heartbroken when she saw the shrouded tree. So He reached out and touched the webs and, blessing them, turned them into silver and gold. Now the Christmas tree sparkled and shimmered and was even more beautiful than before. Thus the custom to have tinsel of silver and gold and a spider ornament amongst the other decorations on the Christmas tree was born.

~Author Unknown

Two links:

http://www.disciplesnow.com/catholic/article.cfm?id=325

http://thebillabong.info/otm_adv/otm45_p18.html

Here's another version. I made these last year, theyr're a pain to make with beads.

Here is a link that might be useful: Christmas spiders

Thank you all. I'm actually looking for a crocheted version of the spider not the beaded one.

Linda

There's another version of the story there :)

Here are several websites that have different small crocheted spiders. One is made to fit over a buttonhole, one is a cat toy, ......
You could probably "fancy" them up by using some glittery yarn to make them or even crochet with a strand of Kreinik glow in the dark embroidery floss along with the yarn.

http://crochet.about.com/library/nspider5.htm

http://crochet.about.com/library/blspider4.htm

http://crochet.about.com/library/nspider2.htm

http://www.jpfun.com/patterns/14misc/spidercattoy.shtml

Hope one of these patterns will work for you.
Paula