I'd recommend against this, Bug type is fail in general, almost all of them suck. There are a few usable ones like Mega Pinsir and Eviolite Scyther, but most are flat out awful. Do NOT use Scizor, despite what others may tell you. The red armoured abomination is easily one of the worst Pokemon in the game. 4X weakness to fire and outsped by every fully evolved Fire Pokemon except Torkoal and Magcargo. That means Scizor is hard countered by an entire type.
Zangoose is the one good Pokemon that came after Gen 1, everything else about Gen 3, as well as gens 2, 4, 5 and 6 is awful. I do not like Gen 3, just Zangoose.