Two recessive mutants, hairless antenna (ha) and notch wing (n), were recovered from inbreeding stocks of the mosquito Aedes (Finlaya) togoi; both mutant alleles exhibited incomplete penetrance and much variation in their expression. Linkage studies indicated that the n and ha alleles were located in linkage groups 1 and 2, respectively; the allele sequence and recombination distances in linkage group 1 were s (straw-colored larval)---(28.8 + 1.2 to 31.9+2.1%)----M (sex locus)----(17.6 + 2.2 to 41.2+1.5%) n---and those in linkage group 2 were ru (ruby eye)---(26.2 + 1.5 to 29.2 + 1.1%---p (pigmented pupa)---(17.8+1.8=17.8+1.8 to 23.2 + 2.2%---ha.
