nope, you cant
Capture either a latios or latias
You can find Latios on Pokemon Emerald, Ruby, and SoulSilver.
Latios.
Latios can be traded to Colosseum from Ruby, or Emerald.
latios is Pokemon number 197 in ruby
After Latios comes Kyogre, the legendary Pokemon for Sapphire Version.
Latios isn't in Pokémon Sapphire, but Latias is. Latias is in Pokémon Ruby! However, you can trade Latios from Pokémon Ruby to get it.
there is no way to capture latias and latios in Pokemon pearl except if you migrate them from other Generation 3.
trade from silver
Migrate it!
you get latios on Pokemon ruby, latias on Pokemon sapphire!!
Latios is not catchable in Sapphire you must get one from Ruby or Emerald.