Ichneumon Wasp Cocoon (Hyposoter sp.)

This was an unexpected find. Looking like bird-dropping, this little capsule of black and white was about 6 mm long with a thin pale skin wrapped around it. It was stuck to the upper surface of a Acacia branchlet. With further investigation and help from an entomologist, I found out that this was the cocoon of an ichneumon wasp and the thin "skin" around it was its host's exoskeleton.
Ichneumon wasps are parasitic on larvae of lepidopterans. A wasp would have parasitised a larva of a moth and then pupated on the branch, wrapping itself with the host's skin ( skin of the moth's larva) for extra protection.
In a publication by The American Entomological Institute, it is stated that ichneumonid wasps go to great lengths to conceal their pupae from hyperparasitoids. Looking like a bird-dropping and remaining concealed under the skin of the host is one such strategy.
Here is another similar looking cocoon from Australia
https://www.flickr.com/photos/zosterops/10549898924/
There appears to be some difficulty in identifying the species from the pupa.