A dominant mutant, Frostybody (F), and a recessive mutant, Pigmented pupa (p), were discovered from the Nagasaki strain of Aedes (Stegomyia) albopictus. The F mutant has numerous white scales dispersed on its scutum and abdomen; this trait is very distinct from that of White-body (Wb), another dominant mutant earlier reported. The F allele is allelic to Wb, and both dominant alleles are lethal in the homozygous conditions and, similarly, the F/Wb genotype is also lethal. For this reason, the dominance relationship between F and Wb could not be revealed in this work. The locus for these dominant alleles is situated at a recombination distance of 3.5+1.1% or less from the P locus. The P. homozygotes become pigmented (dark brown) a few hours after pupation; its penetrance is good with a little variation in the expressivity. The F and P alleles, as well as Wb, are inherited independently of either b (brown-eye) or sex allele; furthermore, the b allele shows an independent assortment with sex. Therefore, these 5 alleles might be representative markers of all 3 linkage groups for this mosquito species.