Dustox doesn't evolve into any other Pokemon.
The Pokemon cascoon will evolve into Dustox at level 10 =D
Dustox
Wurmple can go one of two ways, it can evolve into a Silcoon or a Cascoon. Silcoon evolve into Beautifly. On the other hand, Cascoon evolves into Dustox.
Dustox doesn't evolve.
It evolves at level 10, into Dustox.
you will have to evolve it from cascoon starting at lvl 10
Cascoon evolves into Dustox at level 10
GO IN THE TALL GRASS.Ohh pathectick just evolve casson ok
The first stage of Dustox is Wurmple. Then, depending on its personality, (I don't know which personality gives you which. O.o), you will get Silcoon or Cascoon. Silcoon will evolve into Beautifly at level 10 and Cascoon will evolve into Dustox at level 10 as well. -Hope this helps!;)
he doesn't, whoever told you that dustox evolves, fails.
Dustox is a Poison and Bug type pokemon.
10