Cold storage techniques are being developed in our laboratory for parasitoids of the greenbug,Schizaphis graminum(Rondani) (Archer and Eikenbary 1973, Archer et al. 1973).Aphelillus asychis(Walker) adults could survive storage at 1.7–4.6°C for at least 120 days and still reproduce (Archer and Eikenbary 1973). A method for cold storage ofLysiphlebus testaceipes(Cresson) mummies was developed (Archer et al. 1973) to facilitate timing for mass release and for shipping large numbers of parasitoids.