A preliminary map of the salivary gland chromosomes of Aedes (stegomyia) aegypti (Culicadae, Diptera).

A preliminary map of the polytene chromosomes in Aedes aegypti has been prepared. The preparations were made from the salivary glands of the late 4th instar larvae reared at low temperature. The entire chromosome complement was divided into 45 zones. The chromosomes showed a meshwork of the contents wherein they have a tendency to adhere to each other so as to form a single chromatic mass. The technical difficulties encountered in obtaining suitable preparations have partially been overcome. The banding pattern of Aedes aegypti seems to be quite independent and may be considered as unique for Aedes.