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Carlos Arecio Amarilla Demarqui (born October 26, 1970) is a football referee from Paraguay. Amarilla has been a referee since 1997 and his first international game was between Uruguay and Ecuador. In the 2006 FIFA World Cup he took charge of the opening Group E match between the United States and the Czech Republic, and the Group G match between Switzerland and Togo. Amarilla was not chosen to officiate Knockout Round matches.
|Full name||Carlos Arecio Amarilla Demarqui|
|Born||26 October 1970|
|Other occupation||Electrical Engineer|
On September 11, 2012, he officiated a 2014 FIFA World Cup qualifying match between Uruguay and Ecuador.