siccarius eggcases

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Arachnolord
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Two different mothers right, kept in two different colors of sand?
 

JLDomestics

Arachnoknight
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Cool. I have some Steatoda borealis eggsacs that are different colours. One is white, one is orange, and one is pinkish. What causes the different colours from a single species?
 

Black Widow88

Arachnobaron
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Do you mean that the silk is in different colors? Because if not it could be the eggs.

Black Widow88
 

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Arachnolord
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Right, in the case of the Steatoda, it is the eggs that are a different color, and I don't know why that is, but I've witnessed it as well.

In this case the egg sacs reflect the color of the sand that the spider is kept in.
 

Black Widow88

Arachnobaron
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That's interesting....and also confusing because you don't know if the eggs are fertile or not.

Black Widow88
 

Gigas

Arachnoprince
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Cool. I have some Steatoda borealis eggsacs that are different colours. One is white, one is orange, and one is pinkish. What causes the different colours from a single species?
I have had this before, all the spiders colour will be normal when they are older, also I have had one female produce pink egg sac and at a later date produce yellow, I think it is to do with the diet.
 

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Arachnolord
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I have had this before, all the spiders colour will be normal when they are older, also I have had one female produce pink egg sac and at a later date produce yellow, I think it is to do with the diet.
I saw this occur with an S. triangulosa (I think) in her web at my mother's. If it hadn't been for your post a while back, I would have assumed that it was only that one sac was older than the other.
 
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