The research was aimed at comparing the biological parameters of L. sativaeThe research was conducted atfeeding on leaves of cucumber and tomato.Laboratory of Entomology, Faculty of Agriculture, Sriwijaya University fforn April to October 2005, comprising of observation on immature development, longevity offemale adult and the insect fecundity.Stadium of L. sativae egg on cucumber was 5.18 ± 0…