Depaquit J. auteur aut IRD Randrianambinintsoa F. J. auteur aut IRD Jaouadi K. auteur aut IRD Payard J. auteur aut IRD Bounamous A. auteur aut IRD Augot D. auteur aut IRD Krueger A. auteur aut IRD Brengues Cécile auteur aut IRD Couloux A. auteur aut IRD Robert Vincent auteur aut IRD Leger N. auteur aut IRD text journalArticle eng text/pdf born digital access In the Phlebotomine sandflies, a few molecular studies related on the genus Sergentomyia have been published. The present study explored the genetic variability within Sergentomyia (Sintonius) clydei ( Diptera, Psychodidae). The sampling included 15 populations originating from 12 countries. A morphological approach was coupled to the sequencing of two molecular markers (cytochrome b mtDNA and cacophony nuclear DNA). The most variable morphological characters resided in the cibarium of the females, especially (i) the pigment patch pattern and (ii) the number of cibarial teeth and denticles in the armature. However this morphological approach was unable to individualize any population within S. clydei. The NJ trees based on both molecular markers individualized the specimens from the Aldabra group of islands in the Seychelles. Surprisingly, cyt b variability was not compatible with the known data about the complete submersion of Aldabra occurring relatively recently some 125,000 years ago. The settlement of these islands by S. clydei from continental Africa, the Middle East or Asia, and the value of mtDNA markers are discussed. specialized Colonization Phlebotomine sandflies The Seychelles Aldabra atoll Systematics Island SEYCHELLES 052 21 41-53 2014 1567-1348 https://www.documentation.ird.fr/hor/fdi:010061861 10.1016/j.meegid.2013.10.016 1567-1348 [F B010061861] https://www.documentation.ird.fr/hor/fdi:010061861 https://www.documentation.ird.fr/intranet/publi/2014/04/010061861.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2014-04-29 2017-08-23 fdi:010061861 fre