(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.

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