Bald palpi (bp) and Bald antenna (ba) are fully penetrant, recessive, autosomal mutants of Anopheles albimanus. These new mutants are visible only in the adult stage, and the expression of Bald antenna is limited to males. Genetic crosses were used to assign Bald palpi to the right arm of chromosome 2. Bald antenna is loosely linked to Nonstripe (st) on chromosome 3.