Can You Catch Larvitar In Pokemon Platinum?If Yes,where?

Farfartich'D = Dawns Little Sister - Talk to her ( After getting the Pokedex completed and gotten National Mode For It - She tells you different pokemon and different locations each day.. To Make It Go Faster Just turn your ds on,Click the DS button at the bottom for the settings, click the clock one and go over to the one on the right and put 23:58 or 23:59 depending on what you have to do>.< Turn it off but save the options and turn on Pokemon Platinum and boom their you go! (Repeat to get even more pokemon from her)!

You have to fly to sandgem town and go where the pokemon center is and go down and there will be a house and go in a little will say let me see what the news say. But every day you have to go there and talk to her and she will tell were to go.

Swarm on route 206, talk to dawn's sister in sandgem town
P.S. I think only after you get the national pokedex

Yes you need to go to dawns house her little sister will say were moderatly rare pokemon are by the way she says a different pokemon and location each day

Yes, but you need to finish your pokedex, then go to Dawns house in Sandgem (big one) talk to little girl, if she says route 206, it's larvitar