Phlebotomine Sand Flies from São Gabriel da Cachoeira (State of Amazonas, Brazil) with a Description of Lutzomyia (Psychodopygus) douradoi n. sp. (Diptera: Psychodidae)

Fé, Nelson Ferreira; Freitas, Rui Alves de; Barrett, Toby Vincent

doi:10.1590/s0074-02761998000300010

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…Diferem desses resultados os observados por Fé et al (1998) em São Gabriel da Cachoeira e por Silva et al (2007) em Manacapuru, ambos no Amazonas. Castellón et al (1994) reportaram em sua pesquisa realizada na estrada Manaus -Humaitá, que em geral dentre as espécies coletadas, a mais comum foi L. antunesi.…”

Section: Resultsunclassified

Vetores de tripanosomatídeos (Kinetoplastida: Trypanosomatidae) em Tabatinga, Amazonas, Brasil

Soares¹,

Freitas²,

Figueira³

et al. 2017

Acta Bra.

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ResumoOs flebotomíneos transmitem doenças a humanos e animais, como as arboviroses e bartonelose, além das leishmanioses. O objetivo desta pesquisa foi identificar possíveis espécies de flebotomíneos vetores da doença nessa região no município de Tabatinga. Flebotomíneos foram capturados com armadilhas luminosas e em coletas manuais por aspiração em bases das árvores. Nos meses de agosto dos anos 2010 e 2011, foram capturados 4.542 flebotomíneos (♂: 71,9% e ♀: 28,1%) vetores ou suspeitos de transmitirem tripanosomatídeos, pertencentes a 13 espécies. A espécie mais abundante foi Lutzomyia umbratilis com 78,7%. Um total de 576 (74,0%) flebotomíneos do gênero Lutzomyia foram dissecados, sendo observada infecção natural por tripanosomatídeos em 44 fêmeas. Observou-se no trato digestório dos flebotomíneos a presença de sangue em decomposição em 86,3%; sendo que no que se refere aos ovários, 59,0% mostravam-se em desenvolvimento. A análise isoenzimática de dez isolados, demonstrou perfis similares a Leishmania colombiensis e Endotrypanum sp., no entanto, o perfil do locus Malato Desidrogenase (MDH) demonstrou maior similaridade para o gênero Endotrypanum. Esta é a primeira investigação da fauna entomologia e tentativa de isolamento de tripanosomatídeos no município de Tabatinga, área de tríplice fronteira com o Brasil.Palavras-chave: Amazonas, Endotrypanum, flebotomíneos, Lutzomyia. Vectors of Trypanosomatids (Kinetoplastida: Trypanosomatidae) in Tabatinga,Amazonas, Brazil AbstractThe sand flies transmit diseases to humans and animals, such as arboviruses and bartonellosis, besides the leishmaniasis. The objective of this research was identified potential vectors of this disease in the municipality of Tabatinga. Sand flies were captured with miniature light trap and manual collection by aspiration at the bases of trees. In the months of august 2010 and 2011, were captured 4,542 sand flies (♂: 71.9% and ♀: 28.1%) vectors or suspected of trypanosomatids transmission, belonging to 13 species. The most abundant species was Lutzomyia umbratilis with 78,7%. A total of 576 (74.0%) sand flies of the genus Lutzomyia were dissected and natural infection by trypanosomatids was observed in 44 females. Blood in decomposition was detected at the digestive tract in 86,3% insects; being 59.0% of the ovaries in developing. The isoenzymatic analysis of ten isolates showed similar profiles to Leishmania colombiensis and Endotrypanum sp., however, the profile of the locus Malate Dehydrogenase (MDH) showed major similarity to the genus Endotrypanum. This is the first investigation of the fauna entomology and attempt of trypanosomatids isolation in the municipality of Tabatinga, area of triple border with Brazil.

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Section: Resultsunclassified

Vetores de tripanosomatídeos (Kinetoplastida: Trypanosomatidae) em Tabatinga, Amazonas, Brasil

Soares¹,

Freitas²,

Figueira³

et al. 2017

Acta Bra.

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Phlebotomine sand flies (Diptera: Psychodidae: Phlebotominae) in urban rainforest fragments, Manaus – Amazonas State, Brazil

2013

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The non-flooded upland rainforest fragment in the Federal University of Amazonas Campus is considered one of the world's largest urban tropical woodland areas and Brazil's second largest one in an urban setting. It is located in the city of Manaus, State of Amazonas at 03° 04' 34″ S, 59° 57' 30″ W, in an area covering nearly 800 hectares. Forty-one (41) sand fly species belonging to genus Lutzomyia were found attaining a total of 4662 specimens collected. Lutzomyia umbratilis was the dominant species at all heights, followed by Lutzomyia anduzei and Lutzomyia claustrei. The fauna alpha diversity index showed to be 6.4, which is not much lower than that reported for areas of continuous forest in this Amazonian region. This data provides additional evidence on Phlebotomine sand flies found to transmit Leishmania and other trypanosomatids to humans and other animals circulating in this area. This is the first study being reported on sand flies collected in an urban rainforest fragment in Amazonia.

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Trypanosomatids in Phlebotomine Sand Flies (Diptera: Phlebotominae) From Anthropic and Sinantropic Landscapes in a Rural Settlement in the Brazilian Amazon

Guimarães

Marialva

Feijó

et al. 2022

Journal of Medical Entomology

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Trypanosomatids (Kinetoplastida:Trypanosomatidae) protozoa are a diverse group of obligate parasites. The genera Trypanosoma and Leishmania are the most studied because of their medical importance. This work aims to evaluate the effects of anthropization processes on the composition of the phlebotomine sand fly fauna and the natural infection by Trypanosomatids, with emphasis on Leishmania. At all 3,186 sand flies were collected, distributed in 13 genera and 52 species, being Ny. umbratilis the most abundant species. There was no difference in the diversity between canopy and soil environments. The species abundance and richness were higher in the forest environment while species diversity and evenness were highest in the forest edge. The ITS1 region was used by PCR-RFLP to identify the fragment profiles of Leishmania species, followed by genetic sequencing. Here were analyzed 100 pools of female sand flies, being six positive for DNA parasite. PCR-RFLP fragment patterns similar to Endotrypanum sp. were observed in Nyssomyia anduzei, Psychodopygus amazonensis and Lutzomyia gomezi, and those fragments similar to Leishmania (Leishmania) amazonensis were observed in Bichromomyia flaviscutellata. ITS1 sequencing confirmed the presence of Leishmania sp. in Bi. flaviscutellata, and Leishmania (Viannia) naiffi in Ny. anduzei, Psychodopygus amazonensis, and Lu. gomezi. This is the first record of Lu. gomezi and Ps. amazonensis infection by L. naiffi in the State of Amazonas. These results show the trypanosomatid infection in sandflies from different landscapes in a rural settlement, and the finding of species infected with L.(V.) naiffi suggest that they can develop a role in the transmission cycle of leishmaniasis.

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Phlebotomine Sand Flies from São Gabriel da Cachoeira (State of Amazonas, Brazil) with a Description of Lutzomyia (Psychodopygus) douradoi n. sp. (Diptera: Psychodidae)

Cited by 6 publications

References 3 publications

Vetores de tripanosomatídeos (Kinetoplastida: Trypanosomatidae) em Tabatinga, Amazonas, Brasil

Vetores de tripanosomatídeos (Kinetoplastida: Trypanosomatidae) em Tabatinga, Amazonas, Brasil

Phlebotomine sand flies (Diptera: Psychodidae: Phlebotominae) in urban rainforest fragments, Manaus – Amazonas State, Brazil

Trypanosomatids in Phlebotomine Sand Flies (Diptera: Phlebotominae) From Anthropic and Sinantropic Landscapes in a Rural Settlement in the Brazilian Amazon

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