D.L. Shipman:
Note that the coloring is very similar at both ends. Odd... Is this some sort defensive marking so that when feeding, as it is in this image, it appears to be alert and facing any potential attacker?
I believe this is so, as well as the added advantage that if another critter does take a bite, it gets a mouthful of butterfly butt ;-)
Cheers,
Shawna
http://lightwriting.net