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The seasonal and geographical distribution of Culicoides imicola, C. pulicaris group and C. obsoletus group biting midges in central and southern Spain

  • M. D. Ortega
  • P. S. Mellor
  • P. Rawlings
  • M. J. Pro
Conference paper

Summary

Pirbright-type light traps were used to collect Culicoides biting midges (Diptera: Ceratopogonidae) at fifteen sites in twelve provinces of central Spain and Andalusia. A total of 293 625 Culicoides were collected in 1 387 samples over a two year period. These comprised approximately 9.2% Culicoides imicola, 11.4% C. pulicaris group, 1.6% C. obsoletus group and 12.2% C. circumscriptus. Culicoides imicola was present at ten of the fifteen sites; the five sites from which it was absent were the most eastern of the fifteen. The greatest abundance of this species was at Navalmoral in Caceres province. Culicoides pulicaris group were present at all sites; C. obsoletus group were present at twelve sites. The annual peaks in abundance were: C. imicola, August-October; C. pulicaris group, May-June; and C. obsoletus group,March-June. The geographical and seasonal distributions of C. imicola are consistent with those of the outbreaks of African horse sickness (AHS) and bluetongue (BT) during epizootics in Spain, and support the contention that C. imicola was the major vector of AHS and BT viruses.

Keywords

Seasonal Distribution Annual Peak Bluetongue Virus Major Vector Ciudad Real 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Braverman Y, Barzilai E, Frish K, Rubina M (1985) Bluetongue virus isolation from pools of Culicoides spp. in Israel during the years 1981 to 1983. In: Barber TL, Jochim MM (eds) Bluetongue and related orbiviruses. Alan R. Liss, New York, pp 191–193 (Progress in Clinical and Biological Research, vol 178)Google Scholar
  2. 2.
    Campano Lopez A, Sanchez Botija C (1955) L’epizootie de fièvre catarrhale ovine en Espagne ( Blue Tongue ). Bull Off Int Epiz 50: 65–93Google Scholar
  3. 3.
    Diaz Montilla R, Panos Marti P (1967) Epizootiologfa de la Peste Equina en Espana. Bull Off Int Epiz 68: 705–714Google Scholar
  4. 4.
    Diaz-Yubero MA (1988) Study of the African horse sickness outbreak in Spain. Inf Epiz Esp 88/1/16: 2–3Google Scholar
  5. 5.
    Diaz-Yubero MA (1988) African horse sickness in Spain. Off Int Epiz 1: 34Google Scholar
  6. 6.
    Escribano Mora C (1989) African horse sickness in Spain. Off Int Epiz 2: 99–100Google Scholar
  7. 7.
    Escribano Mora C (1990) African horse sickness in Spain. Off Int Epiz 3: 100–103Google Scholar
  8. 8.
    Lhafi A, Tber A, Fikri, A, Laghzaoui K (1992) African horse sickness in Morocco: the epizootics of 1989 and 1990. In: Walton TE, Osburn BI (eds) Bluetongue, African horse sickness, and related orbiviruses. CRC Press, Boca Raton, pp 205–216Google Scholar
  9. 9.
    Machado Gouveia JM (1989) African horse sickness in Portugal. Off Int Epiz 2: 119–137Google Scholar
  10. 10.
    Mellor PS, Boned J, Hamblin C, Graham S (1990) Isolations of African horse sickness virus from vector insects made during the 1988 epizootic in Spain. Epidemiol Infect 105: 447–454PubMedCrossRefGoogle Scholar
  11. 11.
    Mellor PS, Jennings DM, Wilkinson PJ, Boorman JPT (1985) Culicoides imicola: a bluetongue virus vector in Spain and Portugal. Vet Rec 116: 589–590PubMedCrossRefGoogle Scholar
  12. 12.
    Mellor PS, Pitzolis G (1979) Observations on breeding sites and light-trap collections of Culicoides during an outbreak of bluetongue in Cyprus. Bull Entomol Res 69: 229–234CrossRefGoogle Scholar
  13. 13.
    Ortega MD, Holbrook FE (1994) Presence of C. imicola (Diptera: Ceratopogonidae) in Jaen, Spain. J Am Mosq Control Assoc 10: 463Google Scholar
  14. 14.
    Ortega MD, Holbrook FE, Lloyd J (1997) Seasonal and geographical distribution of Culicoides imicola Kieffer ( Diptera, Ceratopogonidae) in Southwestern Spain. J Am Mosq Control Assoc 13: 227–232PubMedGoogle Scholar
  15. 15.
    Ortega MD, Holbrook FE, Lloyd J (1998) Seasonal distribution and relationship to temperature and precipitation of the most abundant species of Culicoides in the five provinces of Andalusia, Spain. J Am Mosq Control Assoc (in press)Google Scholar
  16. 16.
    Rawlings P, Pro MJ, Pena I, Ortega MD, Capela R (1997) Spatial and seasonal distribution of Culicoides imicola in Iberia in relation to the transmission of African horse sickness virus. Med Vet Entomol 11: 49–57PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag/Wien 1998

Authors and Affiliations

  • M. D. Ortega
    • 1
    • 2
  • P. S. Mellor
    • 3
  • P. Rawlings
    • 3
  • M. J. Pro
    • 4
  1. 1.Delegacion Provincial de Medio AmbienteCórdobaSpain
  2. 2.Laboratorio de Sanidad y Producción AnimalCordobaSpain
  3. 3.Institute for Animal HealthPirbrightUK
  4. 4.Laboratorio de Sanidad y Producción AnimalMinisterio de Agricultura Pesca y AlimentaciónAlgeteSpain

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