The requito jarocho (also known as guitarra de son or javalina) is a stringed instrument originating in south eastern Mexico. The instrument resembles a small classical guitar with only four nylon strings and a standard tuning of ADGc, although other tunings are sometimes used. It is generally made from a single piece of wood.
The requinto jarocho is traditionally used to accompany the son jarocho, a style of Mexican folk music. The instrument can be found in the song La Bamba by Los Lobos.