This study was carried out to investigate an effect of a juvenile hormone (JH) analog, fenoxycarb (FC), on egg development of the black rice bug, Scotinophara lurida (Burmeister). FC-treated S. lurida females could oviposit significantly earlier and more eggs than the untreated control. This gonadotropic effect of the JH analog followed a dose-dependent manner with a maximum over 200 ug doses per adult. Though developmental period of live eggs laid from the FC-treated females was not significantly different from the control, the FC treatment gave significantly adverse effects on the following embryonic development of S. lurida.