Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/16844
Title: Morphological Description of the Immature Stages of Nyssomyia umbratilis (Ward & Frahia) (Diptera: Psychodidae: Phlebotominae), the Main Vector of Leishmania guyanensis Floch (Kinetoplastida: Trypanosomatidae) in the Brazilian Amazon Region
Authors: Alencar, Ronildo Baiatone
Justiniano, Sílvia Cássia Brandão
Scarpassa, Vera Margarete
Keywords: Anatomy And Histology
Animals
Classification
Female
Insect Vector
Larva
Leishmania Guyanensis
Male
Ovum
Psychodidae
Pupa
Ultrastructure
Animal
Female
Insect Vectors
Larva
Leishmania Guyanensis
Male
Ovum
Psychodidae
Pupa
Issue Date: 2018
metadata.dc.publisher.journal: Neotropical Entomology
metadata.dc.relation.ispartof: Volume 47, Número 5, Pags. 668-680
Abstract: Nyssomyia umbratilis (Ward & Frahia) is the main vector of Leishmania guyanensis in the Brazilian Amazon region, where it is widely distributed. Studies have hypothesized that this phlebotomine is part of a cryptic species complex, spatially delimited by the Amazonian river systems, and with different transmission potential of L. guyanensis. In the present study, the immature stages of N. umbratilis are described from laboratory-reared specimens originating from the states of Amazonas and Pará, Brazil. Based on scanning electron and optical microscopy examinations, fine morphological structures (eggshell, setae, and mouthparts of larvae and pupae) are presented. A new form of sandfly pupae sexing (non-invasive) is also provided. The correct identification of insect is extremely important for the epidemiology of certain diseases. However, only the morphological characters of adult can be insufficient to separate accurately the closely related species. It is expected that the present description may contribute to solve the taxonomic problem involving N. umbratilis. © 2018, Sociedade Entomológica do Brasil.
metadata.dc.identifier.doi: 10.1007/s13744-018-0587-6
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