Rotation of the external genitalia in male Phlebotomine sand flies (Diptera, Psychodidae) in laboratory conditions and in captured specimens in Algarve, Portugal
•P. perniciosus laboratory model showed that at 24h post eclosion 51% of the males had their genitalia rotated and at 48h this number raised to 93.4%.•From the field-captured male specimens, 88.16% presented the external genitalia rotated, 8.55% had a partial rotation and 3.29% were unrotated.•Estim...
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Veröffentlicht in: | Acta tropica 2015-10, Vol.150, p.1-3 |
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Sprache: | eng |
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Zusammenfassung: | •P. perniciosus laboratory model showed that at 24h post eclosion 51% of the males had their genitalia rotated and at 48h this number raised to 93.4%.•From the field-captured male specimens, 88.16% presented the external genitalia rotated, 8.55% had a partial rotation and 3.29% were unrotated.•Estimation that all the captured males with partially rotated and unrotated genitalia were captured in the proximity of their breeding sites.•Identification of sand flies breeding sites will aid the control of these vectors by reducing their reproductive success, and consequently reducing the incidence of Leishmaniasis.
Protozoal parasites are the causative agents of many insect-borne infectious diseases worldwide with impact on human and animal health. Leishmaniasis is caused by Leishmania spp. and transmitted by female Phlebotomine sand flies. In Portugal, two species of Phlebotomus (Larroussius), namely Phlebotomus perniciosus and Phlebotomus ariasi are the proven vectors of Leishmania infantum. Phlebotomine females and males rest and breed in the same sites; and these locations can be predicted according to the male external genitalia maturation. Therefore, this study aimed to determine the timing of complete rotation of the male external genitalia in laboratory conditions and to characterize the external genitalia rotation in field captured males to predict the male and female sand fly breeding and resting sites. This knowledge can be applied in the design and implementation of integrated sand fly control strategies targeting these sites. |
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ISSN: | 0001-706X 1873-6254 |
DOI: | 10.1016/j.actatropica.2015.06.016 |