A new recessive mutant, plum eye (pm), of the mosquito Aedes (Finlaya) togoi expresses dark brown eyes prominently in pupae, though difficulty is encountered in detection of this phenotype in larvae and adults. This allele has been located in the same linkage group as yellow larva (y) and curved wing (c), which have been tentatively assigned to linkage group 3. The gene sequence and the map units among them were: c-(17-18 units)___y____(40-41 units) __pm. There was positive interference between the two segments, the coincidence coefficient being 0.542-0.636 in the females and 0.685-0.743 in the males.