Technical Abstract: Electrical penetration graph (EPG) monitoring is being used to study how feeding behavior of the Asian citrus psyllid (ACP) (Diaphorina citri Kuwayama) changes in response to insecticides, in an effort to improve the efficacy of widespread insecticide treatments against the insect in Florida citrus. The present study characterized and correlated two EPG waveforms, NP and Z, recorded when ACP was walking/labial dabbing or standing still, respectively, prior to insertion of the stylets into the plant to begin feeding. The variable-voltage NP waveform was correlated with electrical contact caused by structures on the psyllid tarsus, such as tarsal claws or texture of the arolium (imaged using SEM). This conclusion is supported because covering the tarsi with smooth, clear nail polish abolished the electrical conductance. Despite walking by nail polish-treated insects, only the flat Z waveform (true baseline) was displayed. This is the first time (cited in the literature) that a walking waveform has been detected for a sternorrhynchan hemipteran using the Giga8 EPG monitor. The walking waveform will be useful for EPG studies of insecticide effects because it will identify whether an insect becomes paralyzed from insecticide effects.