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Monarch chrysalis? - Danaus plexippus

Monarch chrysalis? - Danaus plexippus
O'Fallon, St. Clair County, Illinois, USA
September 7, 2014
Size: ~2cm
Preliminarily identified as monarch chrysalis

Sigh - crysalis failed to hatch
I think the comment on the chrysalis being damaged by the black spot was correct since the chrysalis did not hatch after 16 days, but became black and shriveled.

Moved from ID Request.

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BugGuide prefers images cropped to the bug for ID and data storge purpose. I've taken the liberty to crop this image. IrfanView is a free program available on the internet which can be used to crop and sharpen images.

Looks like a Monarch chrysalis
My be damaged by parasite. Also the chrysalis darkens before eclose.

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