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Distribution pattern of Glossina fuscipes fuscipes (Diptera: Glossinidae) in Bahr el Jebel State, southern Sudan

Published online by Cambridge University Press:  01 December 2007

Yassir O. Mohammed ,
Mohammed M. Mohammed-Ahmed ,
Khitma H. El Malik  and
Intisar E. El Rayah
Yassir O. Mohammed
Affiliation:
Central Veterinary Research Laboratories, Animal Resources Research Corporation, Khartoum, Sudan:
Mohammed M. Mohammed-Ahmed
Affiliation:
College of Veterinary Medicine and Animal Production, University of Science and Technology, Khartoum, Sudan:
Khitma H. El Malik
Affiliation:
Faculty of Veterinary Medicine, University of Khartoum, Sudan:
Intisar E. El Rayah*
Affiliation:
Department of Vector and Biomedical Research, Tropical Medicine Research Institute, Khartoum, Sudan
*
*E-mail: intisar62 @yahoo.com
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Abstract

A survey to establish the distribution of tsetse flies (Diptera: Glossinidae) in southern Sudan was conducted using biconical traps. Only Glossina fuscipes fuscipes was caught. The results obtained revealed a further northern advance of G. f. fuscipes of c. 29 km along River Bahr el Jebel and 48 km along River Luri, and a southern contraction of Glossina morsitans submorsitans belt from Lewis' distribution limit. Glossina f. fuscipes was encountered in gallery forest along water courses with no significant differences in sex ratios and proportions of tenerals and non-tenerals between trap catches (P>0.1). Flies were absent from villages and open savanna woodland forests away from water courses. Trap catches were significantly higher during wet than dry season (t = 2.681; P < 0.025), although flies could be caught in any one location during both seasons. These results are discussed in relation to the current epidemic of human African trypanosomosis (HAT) in southern Sudan.

Keywords

Tsetse distributionG. f. fuscipesG. morsitans submorsitansRiver Bahr el Jebelsouthern Sudan
Type
Research Paper
Information
International Journal of Tropical Insect Science , Volume 27 , Issue 3-4 , December 2007 , pp. 210 - 215
Copyright
Copyright © ICIPE 2008

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