Résumé
Des individus issus d'une population dePhanerotoma flavitestacea Fisher élevée dequis 1962 sur un hôte de substitutionAnagasta kühniella Zell., ont été réacclimatés avec succés, en 1968, à leur hôte naturelEctomyelois ceratoniae,Zell. dans la région de Nice où ce parasite n'existait pas jusqu'alors. Quatre ans après l'introduction, cette souche «de plein air” ramenée au laboratoire et élevée dans les mêmes conditions que la souche d'origine, présente par rapport à celle-ci un certain nombre de particularités biologiques; le nombre d'ovocytes contenus dans les ovaires des jeunes femelles, le rythme de ponte et la ponte totale sont plus faibles, la maturité sexuelle est plus lente à s'établir. Par contre la durée de la période de ponte, la longévité et le nombre d'anomalies ovariennes ne sont pas modifiées.
Summary
Individuals from a population ofP. flavitestacea, reared from 1962 on the substitute hostAnagasta kuehniella, were successfully re-acclimatised in 1968 on their natural hostEctomylois ceratoniae, in the Nice region, were the parasite was hitherto unknown. Four years after the introduction, this “open air” strain, returned to the laboratory and raised under the same conditions as the original strain, showed certain biological pecularities: the number of ovocytes in the ovaries of the young females, the oviposition rhythm and the total oviposition were all reduced, and sexual maturity was delayed. On the other hand, duration of oviposition, longevity and number of ovarian aberrations were not affected.
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Ferran, A., Laforge, J.P. L'élevage en laboratoire, sur un hote de substitution dePhanerotoma flavitestacea [Hym.Braconidae] récolté dans le milieu naturel: conséquences sur le potentiel biotique de l'espèce. Entomophaga 18, 397–403 (1973). https://doi.org/10.1007/BF02371016
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DOI: https://doi.org/10.1007/BF02371016