There mainly in Eterna forest.
bug
in Pokemon diamond they are -aaron - bug type - bertha - ground type - flint - fire type - lucian - psychic type
In Pokemon Diamond, Yanma is a bug and flying type of Pokemon. It evolves if you level it up while it knows ancient power.
Kricketot is a Bug type pokemon.
You Can Use Vespiquen Which Evolves From A Female Combee And Level 23
fighting types and bug types are the most effective types on dark.
Anorith is a Rock and Bug type pokemon.
Heracross is a bug type Pokemon that your friend in Pokemon diamond/pearl has and uses. He is rather weak but with the proper training he'll be a great assett to your Pokemon party
It is a attack type from a Bug type
You can find him and more rare bug type Pokemon on route 229 next to Resort Area after you get National Dex.
First Elite Four member is Aaron, who uses Bug Type. The first Pokemon he uses is Dustox.
Any unevolved bug type pokemon.