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Resting sites of Glossina morsitans morsitans Westwood (Diptera, Glossinidae) during the dry season in the Republic of Zambia

Published online by Cambridge University Press:  10 July 2009

S. N. Okiwelu
S. N. Okiwelu
Affiliation:
Pest Research Unit, National Council for Scientific Research, P.O. Box 49, Chilanga, Zambia
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Abstract

Resting site preferences of adult Glossina morsitans morsitans Westw., the dominant species in the Republic of Zambia, were observed during the cool (May–August) and hot (September–October) dry seasons in 1974 at the Chakwenga Game Reserve. Tanglefoot was used to trap resting flies on boles, branches, bushes (undergrowth), canopies, fallen logs and in ant-bear holes.

All resting flies were collected below 4 m and there was an inverse relationship between numbers of resting flies and height of resting sites on boles, branches and canopies. Most flies were collected betwen 06.00 and 09.00 h, except in ant-bear holes, where no flies were found. No significant differences existed between numbers of flies collected from the four cardinal positions on boles. Although more flies were found on shaded than unshaded fallen logs and bushes, the differences were only statistically significant for fallen logs. Numbers of flies on various tree species were generally not significantly different. Boles, bushes and fallen logs were the most preferred sites.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 66 , Issue 3 , September 1976 , pp. 413 - 419
Copyright
Copyright © Cambridge University Press 1976

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