Sweetpotato whiteflies (SPW) Bemisia tabaci Germ.) (Homoptera: Alcyrodidae) have become one of the most serious pests of cotton, partially as a result of their expanded host range and development of resistance to pesticides. While they are generally thought to be phloem-feeders, there is some evidence that they also use other plant compartments for feeding (Pollard, 1955; Cohen et al., 1992). Ability to use alternative feeding sites would be advantageous to SPW under conditions of extreme crowding when access to phloem may be limited and at high environmental temperatures that accelerate desiccation and nutrient depletion of 1st instar nymphs. This study deals with the question of feeding site selection by immature SPW in an effort to assess relative frequency of inphloem and extra-phloem feeding.