A recessive mutant, brown-eye (b), and a dominant mutant, white-body (Wb), were isolated from a strain of Aedes (Stegomyia) albopictus a vector of dengue. The b phenotype can be best distinguished in the pupal eyes, and the expressivity is rather variable but with complete penetrance. The whole abdomen, complete penetrance. The whole abdomen, scutum and vertex of the Wb mutant are covered with white scales; Wb homozygotes are lethal most probably in their egg stage, although they may rarely survive to the adult stage. Backcrosses involving Wb and b alleles revealed absence of genetic linkage among Wb, b and the sex allele (M); the 3 alleles might be markers of all 3 linkage groups in this mosquito.