Don't think that this is a sun school teacher, because it isn't. it is actually the Sun Boss. Gonna be interesting to fight this one. it sort of resembles Dalmea Falmea, the frie teacher in ravenwood.
I don't know if these guys will be roaming the road or are with the big bad bug bosses. this one is sort of like an ant unlike the boss, which has wings. and also notice the runic symbols on the black part of his robes. If you'r trying to pass by these guys, be careful, they can see a lot with their big eyes!
And last but not least, the Two Towers. This is probably going to be in an instance (a.k.a. dungeon). Maybe where that bug boss is waiting for you!