Morphometric Analysis of Longipalpis (Diptera: Psychodidae) Complex Populations in Mato Grosso do Sul, Brazil.
Owing to the existence of cryptic species that are difficult to distinguish morphologically, the search for new taxonomic characters and methods for identifying and classifying sand flies continues. Lutzomyia longipalpis (Lutz & Neiva, 1912) and Lutzomyia cruzi (Mangabeira, 1938) (Diptera: Psychodidae) are two such species that occur in sympatry in some regions of Mato Grosso do Sul State (MS). Twenty females and twenty males from each of the five populations of Lu. longipalpis and one population of Lu. cruzi from MS were examined. An outlying population of Lu. longipalpis from Estrela de Alagoas, State of Alagoas, was used to compare the degree of divergence among the groups in MS. Specimens were cleared, mounted on slides, identified, and measured using LAS-Leica. The principal component analysis of morphometric characters showed a high degree of variation among females, while males varied to a lower degree. The populations of Alagoas and Miranda demonstrated the greatest variation. The first region, Alagoas, is geographically distant from the others and occurs under distinctly different ecological conditions, which likely accounts for the variation. Further studies should be made to elucidate the factors that contribute to the differences found between the populations of MS.
Post Graduate Program in Infeccious and Parasitic Diseases, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil. Post Graduate Program in Animal Biology, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil. mirella.santos@ufms.br.
Mirella F C
MF
Santos
National and International Reference in Phlebotomines, René Rachou Research Center/Fiocruz, 1715, Augusto de Lima ave, 30.190-002 Belo Horizonte, Minas Gerais, Brazil.
José D
JD
Andrade Filho
Post Graduate Program in Animal Biology, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil. Pathology Laboratory, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil.
Carlos E S
CE
Fernandes
Faculty of Medical Veterinary and Zootechnology, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil.
Nathália L F
NL
Mateus
Faculty of Medical Veterinary and Zootechnology, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil.
Gabriel U
GU
Eguchi
Rectory of Federal University of the Great Dourados, Km 12, Dourados - Itahum rd, - Cidade Universitária, P.O. Box 533, 79.804-970 Dourados, Mato Grosso do Sul, Brazil.
Wedson D
WD
Fernandes
Infeccious Diseases Laboratory, Oswaldo Cruz Institute/Fiocruz, 4365, Brasil ave, Manguinhos, 21040-360 Rio de Janeiro, Rio de Janeiro, Brazil.
Reginaldo P
RP
Brazil
Post Graduate Program in Public Health, São Paulo University, 715, Dr. Arnaldo ave, 01246-904 São Paulo, São Paulo, Brazil.
Everton F
EF
Oliveira
Post Graduate Program in Infeccious and Parasitic Diseases, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil. Post Graduate Program in Animal Biology, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil. Parasitology Laboratory, Federal University of Mato Grosso do Sul, Cidade Universitária, P.O. Box 549, 79070-900 Campo Grande, Mato Grosso do Sul, Brazil.
Alessandra G
AG
Oliveira
D000818:Animals; D001938:Brazil; D005260:Female; D007303:Insect Vectors / Q000033:anatomy & histology* / Q000145:classification; D008297:Male; D011576:Psychodidae / Q000033:anatomy & histology* / Q000145:classification*
Lutzomyia cruzi; leishmaniasis; principal component analysis; vector