monarch chrysalid forming

[Ellen Spector]

I recently heard that the monarch chrysalids are always clear, but that the 
green color is a gooey substance almost like embryonic liquid that goes... 
somewhere before the butterfly is ready to emerge.  I know it can't be the 
meconium or haemolymph.. and I don't see the need for embryonic fluid.  I  
have a hard time believing this, but if it's not correct then how, while 
forming, does a monarch go from the shiny, soft, yellowish chrysalid that 
almost shapes the larva to a smooth, hard, green chrysalid that has no 
resemblance at all?  What's filling the holes between it and the accordion 
body?

Ellen Spector
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