Pokédex - BUG-type Pokémon (Crystal Version)
| Name | Number | Type |
|---|---|---|
| Caterpie | 10 | BUG |
| Metapod | 11 | BUG |
| Butterfree | 12 | BUG / FLYING |
| Weedle | 13 | BUG / POISON |
| Kakuna | 14 | BUG / POISON |
| Beedrill | 15 | BUG / POISON |
| Paras | 46 | BUG / GRASS |
| Parasect | 47 | BUG / GRASS |
| Venonat | 48 | BUG / POISON |
| Venomoth | 49 | BUG / POISON |
| Scyther | 123 | BUG / FLYING |
| Pinsir | 127 | BUG |
| Ledyba | 165 | BUG / FLYING |
| Ledian | 166 | BUG / FLYING |
| Spinarak | 167 | BUG / POISON |
| Ariados | 168 | BUG / POISON |
| Yanma | 193 | BUG / FLYING |
| Pineco | 204 | BUG |
| Forretress | 205 | BUG / STEEL |
| Scizor | 212 | BUG / STEEL |
| Shuckle | 213 | BUG / ROCK |
| Heracross | 214 | BUG / FIGHTING |