On A Method Of Marking Tsetse Flies.

Abstract

Scott (S. African J. of Science, 28, 372-5, 1931) summarises the literature of the subject and notes that the oil paints used in this work were not injurious to the flies. He also describes a system of differential marking used by him and his co-workers, ingeniously providing for recognition of nine marking sites, three times of day, five conditions of hunger, and every day for nearly a year. This system has obvious advantages, but is not suitable for all classes of work. The system evolved by the writer in 1929 gives a much smaller number of combinations (on initial marking) but has certain special advantages, not the least of which is that re-marking on recapture is provided for.