That looks like a Black Witch moth to me - we get them on our front porch - they're HUGE!!!

http://bugguide.net/node/view/666746

Here's a photo I took of one:

Oooo, it does so look like La Mariposa de la Muerte ! Very interesting. I was told it was The Giant Grey Sphinx and is the adult moth of the frangipani worm, which eat up our plumerias. They may be related? The caterpillars certainly look nothing alike.

For Manuel · More Info

UPDATE:

I have just confirmed this Ascalapha odorata (Black Witch Moth) is not the moth to the pictured caterpillar (frangipani worm) Pseudosphinx tetrio. It is not the Giant Grey Sphinx Moth. Thank you, Daogirl. I will continue to try to photograph the correct moth.

Maria Elena

This is the true Giant Grey Sphinx Moth - Internet photo, not mine: