These are photos of Monarch Caterpillars and pupae which did not survive and a parasitic wasp that developed from within a pupa. Can anyone enlighten me further? I have larger images and specimens if anyone wants to investigate further. Photos taken by Margaret McRae, creator of the Toronto Parks and Gardens website.

parasitized pupa with 2 little holes in it	parasitized pupa
emaciated caterpillar	emaciated caterpillar
Parasitic wasp (Braconidae?) which developed in pupa	Parasitic wasp (Braconidae?) which developed in pupa