Paedogenesis (reproduction in the sexually immature stage) was found in 1.8% of alate greenbugs,Schizaphis graminum(Rondani), but the frequency was not increased by selection of progeny resulting from paedogenesis. Insects reproducing by paedogenesis produced an avg 1.7 nymphs in 1.3 days before developing wings. This is the 1st known report of paedogenesis in the family Aphididae.