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Studies on Culicoides Species (Latreille, Diptera: Ceratopogonidae) of Nigeria — XI. Species Caught Around Horse Stables

  • C. A. O. Adeyefa
  • Olusegun O. Dipeolu
Article

Abstract

Species of Culicoides feeding on horses were investigated in Ibadan and Ilorin in the southwestern part of Nigeria using light, sticky and emergence traps. A total of 2949 Culicoides consisting of 22 species were caught over a period of 22 months. Culicoides quinquelineatus was the most numerous, followed by C. imicola. The greatest proportion of Culicoides was caught with the sticky traps followed by the emergence traps during the period of moderate to heavy rains. Males were scarce and the proportion of fed females was generally low.

A significantly greater number of Culicoides was caught during the rains than during the dry season. The results are discussed within the context of previous investigations on Culicoides in Nigeria. The possibility of some species, especially C. imicola and C. quinquelineatus being vectors of African horse sickness is also discussed.

Key Words

Culicoides species equids economic importance 

Résumé

On a fait une enquete à Ibadan et à Ilorin au sud-ouest du Nigéria sur les espèces de Culicoïdes qui sont nourries au dépens des chevaux; on avait utilisé des pièges d’émergence, légers et adhésifs. Par ce moyen, on avait attrapé pendant 22 mois un nombre total de 2949 Culicoïdes comprenant 22 espèces. Les Culicoides quinquelineatus étaient les espèces les plus nombreuses, suivies par les C. imicola. Le plus grand nombre de Culicoïdes fut attrapé par les pièges adhésifs, suivis par ceux d’émergence, pendant la période où les pluies étaient relativement modérées ou fortes. Les espèces mâles étaient rares et la proportion des femelles bien nourries était généralement faible.

On a attrapé un nombre plus considérable de Culicoïdes pendant la saison pluvieuse que durant la période sèche. Ces résultats sont expliqués dans le cadre des recherches précédentes faites sur les Culicoïdes. On examine aussi la possibilité que certaines espèces, surtout les C. imicola et C. quinquelineatus, soient vectrices de la maladie africaine de chevaux.

Mots Clés

Espèces Culicoïdes équidés importance économique 

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References

  1. Baker I. P. and Quinn P. J. (1978) A report on clinical aspect and histopathology of sweet-itch. Eq. Vet. J. 10, 243–248.CrossRefGoogle Scholar
  2. Boorman J. and Dipeolu O.O. (1977) A taxonomic study of adult Nigerian Culicoides Latreille (Diptera: Ceratopogonidae) species. Occasional Publication of Entomological Society of Nigeria No. 22.Google Scholar
  3. Braverman Y., Ungar-Waron H., Frith K., Adier H., Damel Y., Baker K. P. and Quinn P. J. (1983) Epidemiology and immunological studies of sweet-itch in horses in Israel. Vet. Rec. 112, 521–524.CrossRefGoogle Scholar
  4. Dipeolu O. O., Durojaiye O. A. and Sellers K. C. (1974) Preliminary observations on the distribution of Culicoides (Diptera: Ceratopogonidae) on the teaching and research farm of the University of Ibadan. Nig. J. Entomol. 1, 35–42.Google Scholar
  5. Dipeolu O. O (1976a) Studies on the Culicoides species of Nigeria II. Species collected around wild animals at Ibadan. Vet. Parasit. 1, 257–263.CrossRefGoogle Scholar
  6. Dipeolu O. O. (1976b) Studies on Culicoides species of Nigeria: VI. Species feeding on poultry. J. Nig. Vet. Med. Assoc. 5, 15–20.Google Scholar
  7. Dipeolu O. O. (1976c) Studies on the Culicoides species of Nigeria: V. Some breeding and resting sites associated with livestock. J. Nig. Vet. Med. Assoc. 5, 1–14.Google Scholar
  8. Dipeolu O. O. (1977) Studies on Culicoides species of Nigeria: X. Species distribution and abundance of Culicoides Latreille (Diptera: Ceratopogonidae) in Nigeria. Bull. Entomol. Res. 66, 685–693.CrossRefGoogle Scholar
  9. Dipeolu O. O. and Ogunrinade A. F. (1976) Studies on Culicoides species of Nigeria: VII. The biology of some Nigeria Culicoides species. Zeitschr. Parasitenk. 51, 289–298.CrossRefGoogle Scholar
  10. Kemp G. E., Humberg J. M. and Alhaji I. (1971) Isolation and identification of African horse sickness virus in Nigeria. Vet. Rec. 89, 127–128.CrossRefGoogle Scholar
  11. Khamala C. P. M. and Kettle D. S. (1971) The Culicoides (Latreille) (Diptera: Ceratopogonidae) of East Africa. Trans. R. Entomol. Sac. Land. 123, 1–95.Google Scholar
  12. Lee V. H., Causey O. R. and Moore D. L. (1974) Bluetongue and related viruses in Ibadan, Nigeria: Isolation and preliminary identification. Am. J. Vet. Res. 35, 1105–1108.PubMedGoogle Scholar
  13. Mellor P. S. and McCaig J. (1976) The problem cause of “sweet-itch” in England. Vet. Rec. 95, 411–415.CrossRefGoogle Scholar
  14. Soulsby E. J. L. (1975) Family Ceratopogonidae. In Helminths, Arthropods and Protozoa of Domestic Animals. Bailliere, Tindall & Cassell, London, pp. 392–394.Google Scholar
  15. Sofoluwe G. O., Dipeolu O. O. and Ogunji F. O. (1977) Studies on filariasis at the Nigerian Institute for Oil Palm Research (NIFOR). I. The results of parasitological and entomological investigations. Nig. J. Microbiol. 1, 52–59.Google Scholar

Copyright information

© ICIPE 1993

Authors and Affiliations

  • C. A. O. Adeyefa
    • 1
  • Olusegun O. Dipeolu
    • 2
  1. 1.Department of Veterinary MedicineNigeria
  2. 2.Department of Veterinary Microbiology and ParasitologyUniversity of IbadanNigeria

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