Four nitrogenous compounds were found to increase feeding by Coptotermes formosanus Shiraki in the laboratory. Cardboard disks dipped in urea solutions were consumed significantly more than untreated cardboard disks. Cardboard dipped in 8% urea showed a significant change in weight due to termite feeding over other urea treated cardboards. Examination of 15 amino acids in no choice feeding tests indicated that three, L-lysine, L-proline, and L-isoleucine, were feeding stimulants to Coptotermes formosanus. A fast screening method for feeding stimulant detectian was developed and is discussed. Using this method on 18 amino acids showed that L-proline and L-lysine were the best feeding stimulants.

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