At the best, using Insect Immitation on Blue Dragon Summoner or Legion the Fiend Jester. Then you can thin your deck by getting anoter monster in your hand.
Encountering strong monsters and spells/traps
The only cards that help to destroy them are Storm and Wild Tornado. They can be used seperately but it is worth more to use them together by setting Wild Tornado on your side of the field and use Storm to trade spell/trap cards. The 2nd effect of Wild Tornado ensures that your opponent's strong face-up cards will be destroyed and Storm ensures that you can eliminate potentially strong set spell/trap cards on their side of the field.
In situations where you feel confident that you will be able to destroy your opponent's strong monsters by beatdown alone, you can save the Wild Tornado and Storm combo and use Enemy Controller, Sphere Kuriboh or Windstorm of Etaqua to negate the incoming attack and destroy it on your turn if its DEF points are low enough.
It can be added in as a 4-starred monster for Insect Imitation. It has better stats than Warrior Dai Grepher or Neo the Magic Swordsman, which will help boost its survivability in situations where you do not have Insect Imitation.
It works similarly to Wild Tornado except that this card removes the equipped monster from play instead of selecting a face-up card to be destroyed. Hence, this card can be added in place of Wild Tornado if you do not have enough copies of it.
Grasshopper is a better option to instant summon 5* bugs from hand fyi