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Alighting of Tabanidae and muscids on natural and simulated hosts in the Sudan

Published online by Cambridge University Press:  10 February 2009

M.M. Mohamed-Ahmed  and
S. Mihok
M.M. Mohamed-Ahmed*
Affiliation:
Department of Parasitology, College of Veterinary Medicine and Animal Production, Sudan University of Science and Technology, PO Box 204, Hillat Kuku, Khartoum North, Sudan
S. Mihok
Affiliation:
388 Church Street, Russell, Ontario K4R 1A8, Canada
*
*Author for correspondence Fax: 0249 853 80136 E-mail: [email protected]
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Abstract

Alighting of horse flies (Diptera: Tabanidae) and non-biting muscids (Diptera: Muscidae) was studied at Khartoum, Sudan, using black cylindrical models mimicking a goat, calf and cow. Flies were intercepted by attaching electrocution grids or clear adhesive film to models. Alighting sites and defensive behaviour were also documented on hosts through observation. Female Tabanus sufis (Jennicke), T. taeniola (Palisot) and Atylotus agrestis (Wiedemann) were the main tabanids captured. Muscids landed in equal numbers on all sizes of models. They had a strong preference for the upper portions of both models and hosts. Landings of T. taeniola and A. agrestis increased with model size, but not so for T. sufis. T. taeniola and A. agrestis scarcely alighted on the legs of models whereas 60–78% of T. sufis did so. Landings of T. sufis on artificial legs did not vary with model size. Landings of all tabanids on the lower and upper portions of a model increased with model size. For both hosts and models, most tabanids (88–98%) alighted on the lower half and legs. Most muscids (63–89%) alighted on the upper half. Landing of tabanids on the cow was 34.9 and 69.3 times greater than that on the calf and goat, respectively. These results are discussed in relation to strategies for the control of blood-sucking flies associated with farm animals using either insecticide-treated live baits or their mimics.

Keywords

TabanidaebehaviourhostsmodelsSudanbaitscontrol
Type
Research Paper
Information
Bulletin of Entomological Research , Volume 99 , Issue 6 , December 2009 , pp. 561 - 571
Copyright
Copyright © 2009 Cambridge University Press

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