The temperature and humidity are, among others, factors which affect the life span of mosquitoes, Caged female Ae. aegypti mosquitoes, kept inside and outside a building were studied in Semarang and Salatiga. During the study, the temperature and the humidity in Semarang (200 m above sea level) were 29.41 degree celcius and 75.07 percent respectively and in Salatiga (600 above sea level) 23.56 …