The lethal yellow seedling phenotype has been observed in seedlings of the genus Cucurbita. It was first reported in C. pepo (1) and more recently in C. maxima (2). In both cases a single recessive gene was reported to control the trait. It is reported here the occurrence and the inheritance of the lethal yellow seedling in C. moschata. To our knowledge, this is the first report on the occurrence of this trait in C. moschata.