Yeah, Whatever forme of Burmy you have it in when it evolves determines the Wormadam it is meant to be forever after evolving & once it does evolve, you are stuck with your choice forever
3DS Friend Code
= 4441 - 9336 - 3527
(Be aware that I must also add you so in order to know you added it, just maybe...)
Eevee Breeding Project leftovers are Available here + rest of my trading wants & haves...Lawence Codye's Trading Thread (Gen 6 / X & Y)"The Nine Tails of Subconscious - Lawence Codye"