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Black chrysalis - Danaus

Black chrysalis - Danaus
Dunnellon, Citrus County, Florida, USA
August 25, 2013
Size: approximately 1/2" long
Found hanging on rock wall near garage, behind a scarlet milkweed plant. There are many monarch chrysalises also hanging, but only one of this type.

Images of this individual: tag all
Black chrysalis - Danaus Black chrysalis - Danaus

Moved from ID Request.

Looks like NP virus
I raised a few wild collected monarchs last year. One of the pupae looked just like this, and I'm pretty sure it was infected by a nuclear polyhedrosis virus.

Could be D. gilippus, the Queen
Looks "dead" ... but pupae often get dark prior to emergence and the queen can be a very dark butterfly...just a thought.

This one may have been parasitized by flies or wasps.

Black Chrysalis
You should be able to see the outline of orange and black wings through the chrysalis. Monarch chrysalis turn a very dark colour just before the butterfly emerges. If nothing emerges, which is the other possibility, it may have an infection commonly referred to as "black death". It's caused by Pseudomonas bacteria or a virus (nuclear polyhedrosis), or at least when they're raised in captivity this happens sometimes.

yes if you cant see
wings in this one if it emerges at all its going to be a mess. usally they are too weak to hang and fall to the ground. if you see a spate of this happening its extremely bad news..hopefully it just has a parasite..but if not every cat who came in contact with this this one more than likely is carrying something. no good.
to my experience..this doesn't look like oe its solid black and usually they are really nasty looking so I hope for a parasite for you.

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