Cisthene plumbea - Hodges#8067
 
 
 
(Lead-colored Lichen Moth).
 
 
 
Photo: 07/13/15, 10 pm.


As the name suggests, the larvae of Cisthene plumbea feed on lichen (algae or cyanobacteria living symbiotically among the filaments of a fungus). The larvae in this genus "are frass shooters that fire their fecal pellets up to 20 times the length of their bodies." 
 

 
bug guide (these photos):
http://bugguide.net/node/view/1101396