Aedes togoi(Theobald) larvae were reared under controlled laboratory conditions at 22 ± 0.5°C, LD 16:8, in commercial sea salt concentrations of 0, 10, 20, and 35 g/liter of dechlorinated tap water, and time to 50% pupation was compared. Development was faster in 10 g of sea salt per liter (P<0.01) than in 20 g/liter, 35 g/liter, and dechlorinated tap water, and faster in 20 g and 35 g of sea salt per liter (P<0.05) than in dechlorinated tap water. Mean larval mortality for all treatments was not significantly different. Development of larvae in 10 g of sea salt per liter was also compared at five temperatures: 18,22,24,30, and 35°C (all ± 0.5°C). Times to 50% pupation ranged from 18 and 19 days for males and females, respectively, at 18°C to 6.5 days for both males and females at 30°C. At 35°C, larval mortality was high and none pupated, but 41% of the larvae reached the 4th instar by 21 days of age.