It should, unless you accidentally pressed "B"
Staravia evolves at Level 34 into staraptor.
Hippoppotas evolves by level. Get it to level 34.
level, 34.
Level 34.
level 34
level 34
level 34
You can level it up by training it to level that is set for it to evolve which is level 34
Skunkies evolve at 34.
You evolve dwebble at level 34
Staravia evolves into Staraptor at level 34.
im sure level 34 and it will evolve