What is Treecko's name in Spanish?

I'm doing a new Custom Pokemon thing, and I need to translate it into Spanish. I can't find Treecko's Spanish name.Thanks for any answers.

treecko's is: Arco if you want anymore il gladly put them down (if i can get) also if you want 1st to i think 3-4 gen spanish names look at this pdf tabkam.com/documents/gen_i_pkmn_sn_in_spnsh.pdf (where it says /gen_i_pkmn add on number of i's

Thanks, but that's all I need.@any mods who happen to be looking at this moment: The topic can now be locked.