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On abnormal Phlebotomus perniciosus (Diptera: Psychodidae: Phlebotominae) from the center of Tunisia

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JOURNAL OF MEDICAL ENTOMOLOGY
卷 -, 期 -, 页码 -

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OXFORD UNIV PRESS INC
DOI: 10.1093/jme/tjad114

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sand fly; parameral sheath morphology; abnormal Phlebotomus perniciosus; Tunisia

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Abnormal specimens of Ph. perniciosus with a multifurcated parameral sheath were found in central Tunisia. Genetic analysis confirmed that this new phenotype is only an original morphotype of Ph. perniciosus.
Phlebotomus perniciosus is the most important vector of Leishmania infantum in the Western part of the Mediterranean basin. Atypical specimens of Ph. perniciosus called (pna) with a parameral sheath simply curved, not bifurcated, have been reported in many locations. In this study, we describe abnormal Ph. perniciosus male specimens. Sand flies were collected in center Tunisia and identified morphologically. Cytochrome b PCR-sequencing was carried out for abnormal Ph. perniciosus male specimens in order to confirm the morphological identification and assess the intraspecific genetic polymorphism. Abnormal Ph. perniciosus specimens were characterized by a multifurcated parameral sheath. A parsimonious haplotype network based on cyt b locus analysis showed that typical and abnormal Ph. perniciosus described in our investigation were grouped together in the same branch. Thus, genetic outcomes confirmed that the new phenotype is only an original morphotype of Ph. perniciosus.

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