I indicated that I felt it was either a gynandromorph or a deformity and wished him luck with subsequent eclosion.
The moth emerged on February 4 and proved to be a mosaic gynandromorph.
Actias selene mosaic gynandromorph, February 4, 2014,
courtesy of Alex Baranowski
Congratulations to Alex on a successful rearing project and a rare eclosion!
Below are additional images.
Actias selene mosaic gynandromorph, pupa, January 16, 2014,
courtesy of Alex Baranowski
Actias selene mosaic gynandromorph, pupa, January 16, 2014,
courtesy of Alex Baranowski
Actias selene mosaic gynandromorph, February 4, 2014,
note different sized antenae, courtesy of Alex Baranowski
Actias selene mosaic gynandromorph, February 4, 2014,
courtesy of Alex Baranowski
Actias selene mosaic gynandromorph, February 4, 2014,
courtesy of Alex Baranowski
Actias selene mosaic gynandromorph, February 4, 2014,
courtesy of Alex Baranowski