Abstract
Summary 1. From the experimental work with A. p. punctulatus it appears that this species of mosquito is a vector of filariasis in this area. 2. The first generation of mosquitoes reared in the laboratory is probably much more hardy than later generations and is less liable to show a high rate of mortality. 3. It is quite practical to make photomicrographs without all of the attachments generally considered necessary for this type of work. Such equipment is expensive and unavailable in most areas and may be improvised. 4. It is believed that this is the first time that the complete larval development of W. bancrofti in a mosquito host has been photographed at a magnification which demonstrated structural detail and that this system of “micro-mapping” might be used more often under similar circumstances.