Nota sobre Lutzomyia (Lutzomyia) Cruzi (mangabeira, 1938), com a descrição da fêmea (Diptera, Psychodidae, Phlebotominae)

Martins, Amílcar; Falcão, Alda Lima; Silva, João Evangelista da; Dias, Edelberto Santos

doi:10.1590/s0074-02761984000400007

Cited by 14 publications

(7 citation statements)

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“…Lu. cruzi was described and redescribed from insects captured in Camapuã 8 , 40 . It is commonly found in areas of savannah and wetland 41 , and already identified in six other municipalities of MS 9 , 24 , 26 , 42 .…”

Section: Discussionmentioning

confidence: 99%

Sandfly fauna (Diptera: Psychodidae) in an urban area, Central-West of Brazil

Fernandes

Borges

Casaril

et al. 2017

Rev. Inst. Med. trop. S. Paulo

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Biological and ecological relations among vectors and their pathogens are important to understand the epidemiology of vector-borne diseases. Camapuã is an endemic area for visceral and tegumentary leishmaniasis. The aim of this study was to characterize the sandfly fauna present in Camapuã , MS, Brazil. Sand flies were collected every fortnight from May 2014 to April 2015 using automatic light traps in the domicile and peridomicile of twelve neighborhoods and forest. The collected specimens were identified based on morphology according to the valid identification keys. In total, 2005 sandflies of five genera and nine species were collected. Nyssomyia whitmani and Lutzomyia cruzi were the most abundant species. Males were more abundant, with a male-to-female ratio of 2.14. The highest diversity was observed in peripheral neighborhood, with abundant plant cover. The peridomicile presented greater abundance of sandflies, with the predominance of Ny. whitmani . No significant correlation between the absolute frequencies of the most abundant species and the precipitation variable was observed; however, there was a predominance of Lu. cruzi in the rainy season. We observed a high frequency of sandflies in urban area, especially vector species. The presence of Nyssomyia whitmani and Lutzomyia cruzi indicate the necessity for health surveillance in the municipality. Additional method of collection such as sticky trap is also recommended for appropriate faunestic study.

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Section: Discussionmentioning

confidence: 99%

Sandfly fauna (Diptera: Psychodidae) in an urban area, Central-West of Brazil

Fernandes

Borges

Casaril

et al. 2017

Rev. Inst. Med. trop. S. Paulo

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“…Examining the holotype of Lu. cruzi , Martins et al [ 33 ] found that these species can be considered cryptic due to their similarities and because the females are morphologically indistinguishable. This similarity could explain the adaptation of Lu.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal analysis of sandfly fauna (Diptera: Psychodidae) in an endemic area of visceral leishmaniasis at Pantanal, central South America

Casaril

Monaco²,

Oliveira

et al. 2014

Parasites Vectors

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BackgroundEnvironmental changes caused by urbanization can cause alterations in the ecology and behavior of sandflies and in the epidemiology of leishmaniasis. Geotechnological tools allow the analysis and recognition of spatiotemporal patterns by monitoring and mapping risk areas of this vector-borne disease. This study aims to describe the sandfly fauna in the municipality of Corumbá and to compare it with the data described in a three-year period from 1984 to 1986 by Galati. A further aim was to analyze the influence of environmental changes on the composition of the fauna.MethodsCaptures were conducted weekly from April 2012 to March 2013, in intra and peridomicile areas with automatic light traps, from 6:00 pm to 6:00 am. The following indices were calculated for both periods analyzed: Standardized Index of Species Abundance (SISA), Shannon’s diversity index (H) and Pielou’s index (J). The Normalized Difference Vegetation Index (NDVI) was extracted from a remote sensing LANDSAT-5 image.ResultsIn total, 7,370 specimens (6,169 males and 1,201 females) were collected, distributed among 12 species. Lutzomyia cruzi was the most frequent species (93,79%) and the first in the ranking of standardized species abundance index in both studies. The dominance of the species Lu. cruzi in the neighborhoods of Maria Leite and Centro was demonstrated by the low equitability index. The neighborhood of Cristo Redentor had the greatest diversity of sandflies in the present study and the second greatest in the study performed by Galati et al. (Rev Saúde Pública 31:378–390, 1997). Analyzing the satellite images and the NDVI from 1984 and 2010, the largest amount of dense vegetation was found in the neighborhood of Cristo Redentor.ConclusionsIt was, therefore, possible to show how changes caused due to urbanization have affected the density and distribution of Lu. cruzi and other species over time. Moreover, the data suggest that different populations of sandflies adapt in different ways according to environmental conditions and the adaptation does not necessarily depends on the presence of high vegetation cover.

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“…All sandflies were identified based on morphological characteristics of the genitalia, head, and thorax, as described by Galati [10]. Species confirmation was only performed on male individuals because females of the two species are indistinguishable [31]. We observed the expected pattern of tergite spots in Lu.…”

Section: Methodsmentioning

confidence: 99%

Genetic Structure of Lutzomyia longipalpis Populations in Mato Grosso Do Sul, Brazil, Based on Microsatellite Markers

et al. 2013

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Background Lutzomyia longipalpis (Diptera: Psychodidae) is the major vector of Leishmania (Leishmania) infantum and thus plays a crucial role in the epidemiology of American visceral leishmaniasis (AVL). This vector is the best studied species of sand fly in the Neotropical region. Many studies claim that this vector is in fact a species complex; however there is still no consensus regarding the number of species that belong into this complex or the geographical distribution of sibling species. The aim of the present study was to analyze the genetic relationships within Lu. longipalpis populations in the state of Mato Grosso do Sul (MS), Brazil.Methodology/Principal FindingsWe collected 30 Lu. longipalpis (15 females and 15 males) from five localities (Campo Grande, Três Lagoas, Aquidauana, Miranda and Bonito) and 30 Lu. Cruzi from Corumbá, totaling 180 sandflies from MS, and 30 Lu. longipalpis from Estrela de Alagoas, state of Alagoas (AL), Northeast Brazil. We show that eight previously described microsatellite loci were sufficient in distinguishing Lu. longipalpis from Lu. Cruzi, which is a closely related species, and in differentiating between Lu. longipalpis collected in MS versus Estrela de Alagoas. Analyses of the genotypes revealed introgression between sympatric Lu. longipalpis and Lu. Cruzi. Conclusions/SignificanceOur findings support the hypothesis of cryptic species within the Lu. longipalpis complex. Furthermore, our data revealed introgression between Lu. longipalpis and Lu. cruzi. This phenomenon should be further investigated to determine the level and incidence of hybridization between these two species. We also demonstrated that microsatellite markers are a powerful tool for differentiating sand fly populations and species. The present study has elucidated the population structure of Lu. longipalpis in MS and, by extension, the Neotropical Lu. longipalpis complex itself.

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Nota sobre Lutzomyia (Lutzomyia) Cruzi (mangabeira, 1938), com a descrição da fêmea (Diptera, Psychodidae, Phlebotominae)

Cited by 14 publications

References 0 publications

Sandfly fauna (Diptera: Psychodidae) in an urban area, Central-West of Brazil

Sandfly fauna (Diptera: Psychodidae) in an urban area, Central-West of Brazil

Spatiotemporal analysis of sandfly fauna (Diptera: Psychodidae) in an endemic area of visceral leishmaniasis at Pantanal, central South America

Genetic Structure of Lutzomyia longipalpis Populations in Mato Grosso Do Sul, Brazil, Based on Microsatellite Markers

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