Gray Comma (Polygonia progne) Metamophosis
Caterpillar
Gray Comma caterpillar (Polygonia progne) 
Fermilab, Kane County, Illinois 
August 16, 2007 

I found this Gray Comma caterpillar in the Fermilab woods on August 13, just into the woods from where we see them flying, on Gooseberry (sitting on a leaf in the photo).  I kept it in a container in my office on a small Gooseberry branch kept fresh in water. 

Chrysalis
Gray Comma (Polygonia progne), 
chrysalis formed by caterpillar in above photo.  
Fermilab, Kane County, Illinois 
August 20, 2007

The caterpillar transformed into a chrysalis during the weekend of August 15 - 16. 


Emerged
Gray Comma (Polygonia progne), same individual as above, emerged from chrysalis.
Fermilab, Kane County, Illinois 
August 25, 2007

Still sitting on the empty chrysalis in my office.  This was Saturday evening, so I took it home to get another photo before releasing it the next day. 
Emerged-upperside
Gray Comma (Polygonia progne), 
same individual as above
Fermilab, Kane County, Illinois 
August 26, 2007

I kept the butterfly in a container in a cool place on our front porch with a cloth over it for darkness, so the butterfly remained inactive over night and into the next morning.  Then I placed it on a white sheet of paper in the sun, where it opened its wings to warm up; I took this photo.  I then released the butterfly where I had found the caterpillar, in the Fermilab woods. 

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