Night_Umbreon
Oh god! The imagery!
Gust is weak, and Bugs, even if Hera, Sciz and Forry are good, everything else is ****.
Clearly you haven't even tried to train bug types before.
Vespiquen is rather good, good stats, reliable healing move, and a 90 power high critical hit ratio stab move.
Butterfree can be useful. A sleep powder/dream eater does some good damage. Give it Bug buzz and Tailwind and there you have a (sort of) sweeper.