Open To Suggestions

I was rearranging rocks one morning and found this egg sac attached to the underside of a rock.

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The whole egg and “shell” measured less than 3/8 inch.

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One side of it broke lose from the rock and flipped over.

One side was more transparent than the other.

I’ve never seen one before.

I have no idea how it was made and then have the egg on the inside.

If anyone knows anything about this curiosity, I’d appreciate hearing from you.

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11 responses to this post.

  1. My guess would be some type off spider but you could try putting a request in on Bug Guide, http://bugguide.net/node/view/15740.

    Reply

  2. It looks like a bird egg ! maybe felt into the grounds and then kind of dry out? (keeping the same shape)

    Reply

  3. Interesting find. I hope you find out what it is.

    Reply

  4. I don’t know what it could be but the folks at bug guide will be able to tell you, and quickly!

    Reply

  5. Yes, it’s a spider egg sac, maybe Corinnidae or Gnaphosidae. The females lays down one sheet of silk, lays her eggs on top of it, and then covers this with a second layer.

    Reply

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