Beautifly's AR code is on this site just scroll down.
If the first code doesn't work use this one then get a Beautifly on GTS.
Complete Pokedex (Press SELECT)
Use at your own risk! (Press SELECT)
Edit: I checked on the link for you and Beautifly isn't there anymore. (i swear it was there before) So you will have to use the Complete PokeDex AR code.
I could also just trade you one if you want. :D
Hope this helps!