In an attempt to overcome the problem of catching Glossina austeni Newstead in reasonable numbers, which hitherto has hindered studies of its ecology in Zanzibar, a new tsetse trap (the Chuka trap) was developed. Its sky-blue coloured version proved superior to the white-and grey-coloured versions, the biconical trap, the Epsilon trap and the 3-dimensional “target” respectively, in catching G. austeni. The Chuka trap helped to establish that G. austen is a very low flyer and most trappable in the “forest floor” biotope of Jozani Forest.
