Six repellents were highly effective against Aedes taeniorhynchus (Wiedemann) when they were applied to human skin in field studies on the east coast of Florida. These compounds were the most promising of 120 repellents tested from 1972 through 1974. The most effective compound, N,N-diethyl-5,5-dimethyl-I-3, 6-cyclohepatatriene-I-carboxamide, was significantly more effective than the N, N-diethyl-m-toluamide (Deet) standard in one series of tests and equal to the Deet standard in a second series.