Rhynchomitra microrhina (?).
Size: approx. 15 mm. Photo: 08/22/11, 9 am.

This planthopper is Rhynchomitra microrhina. Its name refers to its "snout" and "small nose". 

bug guide (this photo):

Rhynchomitra lingula.
Photo: 09/13/14, 11 pm.

This fairly large planthopper is most likely Rhynchomitra lingula. The other two, North American species have a more pointy "snout" and narrower heads. This specimen came to our porch light. Known host: saw palmetto. For a high resolution version of the photo click here.  
bug guide (this photo):