Studies on the feeding habits of Lutzomyia (N.) intermedia (Diptera, Psychodidae), vector of cutaneous leishmaniasis in Brazil.
The precipitin test was applied to identify the blood meal sources of Lutzomyia intermedia, collected in two distinct habitats: inside houses and in the peridomicile, in Mesquita, Rio de Janeiro State, Brazil, a transmission area of Leishmania (V.) braziliensis. The following antisera were tested: human, avian, equine, rodent, and opossum. From a total of 370 females analyzed, 128 specimens from the domicile and 59 from the peridomicile reacted with specific antisera. The anthropophily of L. intermedia was confirmed in both habitats; likewise, the feeding of this sand fly species on domestic animals, observed in previous entomological surveys, was confirmed by the strong reactivity with avian, canine, and equine antisera. However, feeding on rodents, mammals frequently found inside and around houses, represents further evidence related to the vector competence of L. intermedia, since synanthropic and sylvatic rodents have been considered a putative reservoir of L. (V.) braziliensis.
Afonso
Margarete Martins Dos Santos
MM
Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, Brasil.
Gomes
Almério Castro
AC
Meneses
Cláudio Roberto Valente
CR
Rangel
Elizabeth Ferreira
EF
D000818:Animals; D001717:Birds; D001938:Brazil; D004285:Dogs; D005247:Feeding Behavior / Q000502:physiology*; D005260:Female; D006736:Horses; D006801:Humans; D007303:Insect Vectors / Q000502:physiology*; D016773:Leishmaniasis, Cutaneous / Q000635:transmission; D009893:Opossums; D011233:Precipitin Tests; D011576:Psychodidae / Q000502:physiology*; D012377:Rodentia