Abstract
Ovaries from post-diapause pupae of the cabbage armyworm M. brassicae were cultured. Three types of cells migrated from the explants. Epithelial-like cells formed confluent monolayers, and fibroblast-like cells formed cellular networks. Isolated cells were distributed around the explants. Epithelial-like cells and isolated cells were common, and fibroblast-like cells were rather rare. The migrated cells survived for more than 6 mo., although mitoses were rarely observed.