Madness on here keeps sagitae but if I were you I'd still consider it a Midevil as midevils are crossed amphs of various back grounds. For example, right now I'm raising about 50-60 growouts 1-2.5" which are half xiloensis and half red isletas.... I don't plan to sell them or give them away, but if I did I would consider them midevils ( which is what I call them)
Yours very well could have a more streamlined shape so maybe one of the parents was a sagittae
Got any pics?!?