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Journal of Experimental Biology 34,42-51 (1957)
Published by Company of Biologists 1957

The Effect of Humidity on the Activity of Tsetse Flies

E. BURSELL 1

1 East African Trypanosomiasis Research Organisation, Shinyanga, Tanganyika

1. The activity of hungry tsetse flies is greater in dry air than in wet, and the intensity of this orthokinetic reaction increases in the course of desiccation.

2. The orthokinesis is abolished at low light intensities; this effect of light is mediated by the compound eyes.

3. The thoracic spiracular filters are the sense organs responsible for the kinetic reaction to humidity.

Submitted on July 6, 1956






© The Company of Biologists Ltd 1957