First record of Anopheles konderi Galvão & Damasceno (Diptera: Culicidae) carrying eggs of Dermatobia hominis (Linnaeus Jr.) (Diptera: Oestridae), from Oriximiná municipality, Pará, Brazil

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Abstract

Abstract INTRODUCTION: The muscoid fly Dermatobia hominis causes cutaneous myiases in mammals. Females of this species use a vector to carry their eggs to the host. This note describes Anopheles konderi acting as phoretic vector for D. hominis. METHODS: A female A. konderi carrying D. hominis was collected using light traps in Oriximiná, Pará, Brazil. The A. konderi specimen was identified at morphological and molecular levels. RESULTS: Eight eggs of D. hominis were observed on the Anopheles konderi female. CONCLUSIONS: Anopheles konderi, only the third Anopheles species recorded as a phoretic vector, may be a potential vector of D. hominis.

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Most cited references 15

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Comparative susceptibility of anopheline mosquitoes to Plasmodium falciparum in Rondonia, Brazil.

Francisco J B Lima, Jeffrey T. Klein, M Tada (1991)

Five anopheline species, Anopheles deaneorum, An. albitarsis, An. triannulatus, An. oswaldoi, and An. mediopunctatus were compared to An. darlingi for susceptibility to infection by P. falciparum in Costa Marques, Rondonia, Brazil. Laboratory reared F1 An. darlingi and anopheline test species were allowed to feed at the same time on falciparum malaria patients who had gametocytes in their blood, and who had not yet been treated with quinine. Mosquitoes were dissected and examined for oocysts on day 9, and for sporozoites on days 16-20 after feeding. Anopheles mediopunctatus had higher mean numbers of oocysts and oocyst positive rates than An. darlingi. The oocyst positive rate and the mean number of oocysts in An. deaneorum and An. darlingi were similar. Anopheles triannulatus and An. oswaldoi had fewer oocysts than An. darlingi. The salivary gland sporozoite infection rate was similar for An. mediopunctatus and An. deaneorum and much lower for An. triannulatus and An. oswaldoi when compared to An. darlingi. Anopheles albitarsis developed oocysts, but sporozoites did not invade the salivary glands. In relative levels of susceptibility to P. falciparum, An. darlingi was equal to An. mediopunctatus which was greater than An. deaneorum, which was greater than An. triannulatus, which was greater than An. oswaldoi.

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Sequence analysis of the second internal transcribed spacer of ribosomal DNA in Anopheles oswaldoi (Diptera: Culicidae).

C Mendoza, M T Marrelli, R Torre … (1999)

Sequence divergence in the second internal transcribed spacer (ITS2) of ribosomal DNA was examined for female specimens of Anopheles oswaldoi Peryassu from 7 localities in South America. The lengths of ITS2 for all mosquitoes ranged from 348 to 356 nucleotides. After alignment of these sequences, similarity ranged from 87 to 100%. Divergence was within the range of inter-specific differences for members of anopheline species complexes. Therefore, specimens were placed into 4 groups that may correspond to at least 4 cryptic species. One is probably related to An. oswaldoi sensu stricto and another to Anopheles konderi Galvão & Damasceno. The other 2 groups may correspond to species for which morphological identification remains to be clarified. These data provide evidence that An. oswaldoi comprise a complex of cryptic species and that DNA identification may help to resolve the taxonomic questions related to this group.

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Molecular differentiation of Anopheles (Nyssorhynchus) benarrochi and An. (N.) oswaldoi from Southern Colombia

Freddy Ruiz, Martha L Quiñones, Holmes F Erazo … (2005)

Anopheles (Nyssorhynchus) benarrochi, An. (N.) oswaldoi, and An. (N.) rangeli are the most common anthropophilic mosquitoes in the southern Colombian state of Putumayo. Adult females are most commonly collected in epidemiological studies, and this stage poses significant problems for correct identification, due to overlapping inter-specific morphological characters. Although An. rangeli is easy to identify, the morphological variant of An. benarrochi found in the region and An. oswaldoi are not always easy to separate. Herein we provide a rapid molecular method to distinguish these two species in Southern Colombia. Sequence data for the second internal transcribed spacer (ITS2) region of rDNA was generated for link-reared progeny of An. benarrochi and An. oswaldoi, that had been identified using all life stages. ITS2 sequences were 540 bp in length in An. benarrochi (n = 9) and 531 bp in An. oswaldoi (n = 7). Sequences showed no intra-specific variation and ungapped inter-specific sequence divergence was 6.4%. Species diagnostic banding patterns were recovered following digestion of the ITS2 amplicons with the enzyme Hae III as follows: An. benarrochi (365, 137, and 38 bp) and An. oswaldoi (493 and 38 bp). This polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay provides rapid, accurate, and inexpensive species diagnosis of adult females. This will benefit future epidemiological studies and, as PCR amplification can be achieved using a single mosquito leg, the remaining specimen can be either retained as a morphological voucher or further used in vector incrimination studies. That An. benarrochi comprises a complex of at least two species across Latin America is discussed.

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Author and article information

Contributors

Ronildo Baiatone Alencar: Role: ND

José Ferreira Saraiva: Role: ND

Arley Faria José de Oliveira: Role: ND

Vera Margarete Scarpassa: Role: ND

Journal

Journal ID (publisher-id): rsbmt

Title: Revista da Sociedade Brasileira de Medicina Tropical

Abbreviated Title: Rev. Soc. Bras. Med. Trop.

Publisher: Sociedade Brasileira de Medicina Tropical - SBMT (Uberaba, MG, Brazil )

ISSN (Print): 0037-8682

ISSN (Electronic): 1678-9849

Publication date (Print and electronic): June 2017

Volume: 50

Issue: 3

Pages: 388-390

Affiliations

[1] Manaus Amazonas orgnameInstituto Nacional de Pesquisas da Amazônia orgdiv1Coordenação de Biodiversidade orgdiv2Laboratório de Genética de Populações e Evolução de Mosquitos Vetores de Malária e Dengue Brazil