Abstract
The circadian rhythm of eclosion in the house fly, Musca domestica, was measured using new apparatus, designed for large populations. The rhythm of eclosion was found to depend upon separate biological clocks in the pupal and larval stages. A comparison of the wild type and triple mutant wbp (white eyes, brown body and pointed wings) showed that the mutant has a short periodicity of eclosion. Cross breeding analysis suggested that a single gene controls the short periodicity of the eclosion rhythm in the triple mutant (wbp).
