(1) The diploid number of chromosomes in Stegomyia fasciata is four.
(2) A varying degree of parasyndesis (pairing of the chromosomes) is exhibited in the somatic cells, extreme parasyndesis giving1 a haploid count.
(3) Each telophasic mass of chroinatin gives rise directly to a synizetic nucleus instead of the usual "resting" nucleus.
(4) The nuclear membrane persists throughout mitosis.
(5) The homologous chromosomes pair either in anaphase or in telophase.