In this study, we assessed the efficacy of the American Biophysics Corporation Standard professional(ABC-PRO) light trap, the Omni-Directional Fay-Prince trap (withlnd without CO2), and the Centersfor Disease Control and Prevention Wilton trap as a mqlns of evaluiting populations of aduli Aedes aegypti inan urban area of northeastern Peru. Efficacies of collections from each of the trap types were "o-pLld tobackpack-aspirator collections and human-landing collections. Collections were collected twice daily, 3 daysper week, for 27 wk from July 2001 to July 2002.