Not sure if this would be considered relevant or not, but I figured I'd mention it just as a heads up. There is a new insects mod currently in development by Impulseman45 that will use vastly improved meshes and textures for the moths and butterflies.
I'm been in contact with Impulseman and we're discussing possibilities for incorporating his new insects into my Alchemy overhaul. :)
Kry, if you haven't already you may want to check out Wiseman303s Critter Fixes and make sure the new bugs meshes are set up with correct collision, etc.
Right now, vanilla bugs stop you dead in tracks when you run into them. Uskp
made it so the player can walk through them but now you can't hit them with swords/projectiles. Critter Fixes makes it so the player still goes through them but they can still be hit among other things like making dead bugs float on water.