Feeding rates of first-instar, second-instar, and adult femaleScirtothrips citri(Moulton) at 20, 24, 28, 32, and 36°C were compared based on the passage of14C-labeled inulin through the digestive tract. For all temperatures, second instars ingested the most followed by adult females and first instars. Second instars also were more sedentary on the feeding surface and probably made more feeding punctures through the feeding membrane. Within life stages, first and second instars increased their feeding rate to an optimum temperature of 29–30°C and decreased their feeding rate at higher temperatures, whereas adult females increased their feeding rate over the entire temperature range. Results suggest that second instars are likely to cause the most scarring to citrus fruit.