Tiger Moth

This white Tiger Moth of about 1.5 cm length, is a species I haven't seen before. It looks superficially like the white Salt Marsh Tiger Moth with black spots, especially in the coloring of the abdomen and the legs. However this one has an unusual wing pattern in dark brown and a completely white thorax. The underwings also have some spotting. The abdomen is white with black spots with orange and black banding down the dorsal center. She laid several cream colored eggs (last picture). Family Erebidae, Arctiinae. For pictures of the Salt Marsh Tiger Moth (also from San Cristobal) see:
http://www.projectnoah.org/spottings/558826031/fullscreen and
http://www.projectnoah.org/spottings/21719013/fullscreen.