The note reports the data of a three-year sand fly investigation (1997-99) carried out in Eastern Sicily (Italy) with the aim to study the distribution of Phlebotomus sergenti.The survey involved a densely inhabited area at the foot of Mount Etna and the area of Iblei mounts.A total of 9,095 sand flies, of which 63.4% males, were captured. Five species belonging to the genus Phlebotomus (P. perniciosus, P. perfiliewi, P. neglectus, P. sergenti and P. papatasi) and one to the genus Sergentomyia (S. minuta) were identified. Both the prevalence and distribution of the species were different within the two areas studied. In Mount Etna area, P. perniciosus (77.7%) was the prevalent species followed by S. minuta (19.8%), P. sergenti (2.0%), P. neglectus (0.3%) and P. papatasi (0.2%). While in Iblei mounts region S. minuta (84,5%) showed the highest prevalence, followed by P. perniciosus (14.4%), P. perfiliewi (0,9%) and P. neglectus (0,1%). Here, P. sergenti was a very rare species (<0.02).P. sergenti was mostly associated to domestic habitats of periurban and urban zones located between two and 750 m a.s.l. The density values of P. sergenti, expressed as number of specimens/m2 of sticky trap, were between 0.3 and 5.5 with the highest value in the hilly collecting sites. The low observed abundance of P. sergenti does not allow to draw any prediction on the role that the species could play in the trasmission of leishmaniasis is Sicily.

About the presence of Phlebotomus sergenti Parrot, 1917 (Diptera: Psychodidae) in Eastern Sicily, Italy

D'URSO, Vera;
2004-01-01

Abstract

The note reports the data of a three-year sand fly investigation (1997-99) carried out in Eastern Sicily (Italy) with the aim to study the distribution of Phlebotomus sergenti.The survey involved a densely inhabited area at the foot of Mount Etna and the area of Iblei mounts.A total of 9,095 sand flies, of which 63.4% males, were captured. Five species belonging to the genus Phlebotomus (P. perniciosus, P. perfiliewi, P. neglectus, P. sergenti and P. papatasi) and one to the genus Sergentomyia (S. minuta) were identified. Both the prevalence and distribution of the species were different within the two areas studied. In Mount Etna area, P. perniciosus (77.7%) was the prevalent species followed by S. minuta (19.8%), P. sergenti (2.0%), P. neglectus (0.3%) and P. papatasi (0.2%). While in Iblei mounts region S. minuta (84,5%) showed the highest prevalence, followed by P. perniciosus (14.4%), P. perfiliewi (0,9%) and P. neglectus (0,1%). Here, P. sergenti was a very rare species (<0.02).P. sergenti was mostly associated to domestic habitats of periurban and urban zones located between two and 750 m a.s.l. The density values of P. sergenti, expressed as number of specimens/m2 of sticky trap, were between 0.3 and 5.5 with the highest value in the hilly collecting sites. The low observed abundance of P. sergenti does not allow to draw any prediction on the role that the species could play in the trasmission of leishmaniasis is Sicily.
Les auteurs rapportent les résultats d’une enquête entomologique menée durant trois années (1997-1999) à l’aide de pièges adhésifs dans l’est de la Sicile (Italie) avec l’objectif d’étudier la distribution de Phlebotomus sergenti dans une région très peuplée au pied de l’ Etna et dans celle des Monts Iblei. 9095 phlébotomes ont été capturés parmi lesquels 63,4 % de mâles. Cinq espèces appartenant au genre Phlebotomus (P. perniciosus, P. perfiliewi, P. neglectus, P. sergenti et P. papatasi) et une appartenant au genre Sergentomyia (S. minuta) ont été identifiées. La prévalence et la distribution de ces espèces varient selon la zone prospectée. Dans la région de l’Etna, P. perniciosus est l’espèce la plus abondante (77,7%) suivie dans l’ordre décroissant par S. minuta (19,8%), P. sergenti (2%), P. neglectus (0,3%) et P. papatasi (0,2%). Dans la zone des Monts Iblei, S. minuta est l’espèce la plus abondante (84,5%) suivie par P. perniciosus (14,4%), P. perfiliewi (0,9%), P. neglectus (0,1%) et P. sergenti, extrêmement rare dans cette zone (<0,02%).Cette dernière espèce est presque toujours associée à des habitats domestiques en zone urbaine ou périurbaine, à des altitudes comprises entre deux et 750 mètres.Les densités observées varient entre 0,3 et 5,5 P. sergenti par mètre carré de papier huilé, les abondances les plus élevées étant corrélées aux reliefs accidentés. Ces faibles abondances ne permettent aucune prédiction quant au rôle joué par P.sergenti en Sicile dans la transmission de Leishmania tropica. Néanmoins, sa distributionet sonabondance en Sicile et dans le sud de la péninsule italienne devraient être évaluées périodiquement ainsi que la dynamique populationnelle et son anthropophilie.
Phlebotomus sergenti, distribution, cutaneous leishmaniasis, Sicily, Italy.; Phlebotomus sergenti, distribution, leishmaniose cutanée, Sicile, Italie.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/25288
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