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Issue: Vol. 4504 No. 4: 26 Oct. 2018
Type: Article
Published: 2018-10-26
DOI: 10.11646/zootaxa.4504.4.7
Page range: 566–576
Abstract views: 113
PDF downloaded: 5

Geometric morphometry of the head in sand flies (Diptera: Psychodidae: Phlebotominae), an alternative approach to taxonomy studies

Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil, 01246-904. Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemiptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brasil, 21040-360. Grupo de Estudos em Leishmanioses/Coleção de Flebotomíneos (FIOCRUZ/COLFLEB), Instituto René Rachou, Fundação Oswaldo Cruz, Av. Augusto de Lima, 1715, Barro Preto, Belo Horizonte, MG, Brasil, 30190-009.
3Grupo de Estudos em Leishmanioses/Coleção de Flebotomíneos (FIOCRUZ/COLFLEB), Instituto René Rachou, Fundação Oswaldo Cruz, Av. Augusto de Lima, 1715, Barro Preto, Belo Horizonte, MG, Brasil, 30190-009.
Laboratório de Leishmanioses, Instituto Evandro Chagas, Rodovia BR-316, km 7, Ananindeua, PA, Brasil, 67030-000.
Laboratório de Ecologia de doenças transmissíveis na Amazônia, Instituto Leônidas & Maria Deane, Fundação Oswaldo Cruz, Rua Teresina, 476, Adrianópolis, Manaus, AM, Brasil, 69057070;
Laboratório Central de Saúde Pública, Secretaria Estadual de Saúde de Rondônia, R. Anita Garibalde, 4130, Costa e Silva, Porto Velho, RO, Brasil, 76803-620;
Laboratório de Entomologia Médica Dr. Thomaz Corrêa Aragão, Secretaria de Saúde do Estado do Ceará, Rua dos tabajaras, 268, Praia de Iracema, Fortaleza, CE, Brasil, 60060510.
2Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemiptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brasil, 21040-360.
2Laboratório Interdisciplinar de Vigilância Entomológica em Diptera e Hemiptera, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, Brasil, 21040-360.
Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil, 01246-904.
Diptera Morphometrics Psychodopygus Chagasi Series taxonomy species complex

Abstract

Almost 30% of female American sand flies are morphologically indistinguishable from one another. These females belong to species-complexes or groups with closely related species, making species-level identification difficult or even impossible. This fact has implications for public health since several of these groups include species which are vectors of human pathogens. Thus, new tools are needed to minimize species-level identification problems. In this context, our research sought to use geometric morphometry in the study of the head of females of closely related species of the genus Psychodopygus, Chagasi series, which includes the following species: P. chagasi, P. complexus, P. squamiventris maripaensis, P. squamiventris squamiventris, and P. wellcomei. We have used ten landmarks distributed on the head of these species. All species were clearly distinguished using the centroid size and shape together. These results highlight the head analysis as an effective tool for future geometric morphometry studies in sand flies.

 

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