A recessive mutant, bleached Pupa (bl), was isolated from the Taipei (Taiwan) strain of Aedes (Finlaya) togoi. The bl pupae are yellowish but brighter than the y (yellow larva) pupae. Although the 2 phenotypes cannot be readily distinguished in their pupal stage, they are not identical nor allelic. The bl allele is linked to c (curved wing) and PM (plum eye) in linkage group III. The bl-c map distance is 14.2 map units in females and 17.8 units in males. The gene sequence in linkage group III appears to be: PM- (40 units) -y- ? -bl- (14-18)-c.