Lutzomyia derelicta (Diptera: Psychodidae) a singular new phlebotomine sand fly from an inselberg in northeastern amazonia

Freitas, Rui Alves de; Barrett, Toby Vincent

doi:10.1590/s0074-02761999000500012

Cited by 5 publications

(3 citation statements)

References 10 publications

(14 reference statements)

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“…evolved from an ancestral Sergentomyia spp. (Freitas & Barrett, 1999) so that the Sergentomyia spp. terpenes may represent the primitive forms of these sex pheromones.…”

Section: Discussionsupporting

confidence: 71%

Analysis of the sex pheromone extract of individual male Lutzomyia longipalpis sandflies from six regions in Brazil

Hamilton

Maingón

Alexander³

et al. 2005

Medical Vet Entomology

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Although the phlebotomine sandfly Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae) is generally accepted to be a species complex, it is unclear how many members there are, how they are related and which are the main vectors of leishmaniasis. The vectorial capacity of each sibling species is likely to differ, thus a means of identifying the most important vector species is of critical importance to the epidemiology and control of this debilitating disease in South and Central America. In Brazil four chemotypes have been distinguished by sex pheromone analysis. In this study the sex pheromone extracts of L. longipalpis from six regions of Brazil were analysed in detail. Samples included the sympatric 1-spot, 2-spot and intermediate spot morphotypes from Sobral, Ceará State. The results strongly suggest that members of the complex that produce different sex pheromones are reproductively isolated, thus strengthening the argument that the different chemotypes represent true sibling species. The study also found significant differences in morphology and the amounts of sex pheromone produced by members of each chemotype from different parts of Brazil, which suggests population substructuring that has not previously been recognized. Evidence of a fifth chemotype in Brazil is also presented.

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“…evolved from an ancestral Sergentomyia spp. (Freitas & Barrett, 1999) so that the Sergentomyia spp. terpenes may represent the primitive forms of these sex pheromones.…”

Section: Discussionsupporting

confidence: 71%

Analysis of the sex pheromone extract of individual male Lutzomyia longipalpis sandflies from six regions in Brazil

Hamilton

Maingón

Alexander³

et al. 2005

Medical Vet Entomology

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“…The new species share with Lutzomyia derelicta Freitas and Barrett (1999) and Edentomyia piauiensis Galati et al (2003) the absence of the posterior cibarial bulge; and with L. oligodonta Young et al (1985) and E. piauiensis a reduced number of cibarial teeth. In the latter two species the interocular suture is incomplete, whereas in L. maruaga it is very highly developed.…”

Section: Resultsmentioning

confidence: 77%

Lutzomyia maruaga (Diptera: Psychodidae), a new bat-cave sand fly from Amazonas, Brazil

Alves¹,

Freitas

Barrett

2008

Mem. Inst. Oswaldo Cruz

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A new species of parthenogenetic, autogenic and apparently extremely endemic phlebotomine is described from a sandstone cave located in primary terra firme forest to the North of the city of Manaus. Specimens The caves and other arenitic formations of the municipal district of Presidente Figueiredo are singular relicts of the Palaeozoic (Karmann 1986), surviving between the more recent Amazonian sediments and the ancient rocks of the Guiana Shield. As part of a biological inventory of the area, insects were collected in the darkest recesses of the largest cavern. The purpose of the present communication is to describe a most peculiar phlebotomine, so as to make the name available for studies in progress on its ecology, ontogeny and classification. MATERIALS AND METHODSStudy area -The cave, known as Gruta Refúgio do Maruaga, is catalogued (AM-0002, Sociedade Brasileira de Espeleologia). It is a cavity 302 m long in white sandstone of the Nhamundá formation (Trombetas group, Palaeozoic Era) at 02º03'02.49"S, 59º57'48.85"W in the municipally of Presidente Figueiredo, state of Amazonas, Brazil (Karmann 1986). Access to the entrance is by steep descent through primary forest from km 6 on the road leading from the BR-174 highway to the hydroelectric station of Balbina. A shallow stream runs through the whole length of the cave, from the interior to the mouth. Vertebrates observed in the cave include fish, amphibians, alligators, turtles and (close to the entrance) cocks-of-the-rock (Cotingidae), but by far the most abundant were diverse species of bats. Thick deposits of guano were present, especially in the final chambers. Although closed to visitors following the detection of pathogenic fungi, the entrance was heavily marked by human footprints.Sampling and identification -CDC miniature light traps were hoisted on poles leaning against the walls of the cave, to give a height of approximately 4 m. Immature stages were extracted from bat guano by flotation according to Hanson (1961). Larvae and pupae were reared according to the methods of Killick-Kendrick et al. (1977) with supplementation of the medium with autoclaved guano. The adults which emerged were offered bloodmeals on anaesthetized mice and hamsters, but did not feed. Conventional clearing with potassium hydroxide and phenol resulted in the collapse of the very delicate spermathecae of this species, so drawings of specimens included in the type series are from individuals freshly dissected and mounted directly in Berlese fluid. Measurements are mean values in mm, with range in parentheses.

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“…Additional information on the type locality Serra do Cachorro is given in Freitas and Barrett (1999) and Quate and Alexander (2000). Measurements are mean values in mm with range in parentheses for specimens cleared in NaOH and phenol and slide mounted in Canada balsam.…”

Section: Methodsmentioning

confidence: 99%

Descriptions of Lutzomyia (Evandromyia) georgii n. sp. and a Synopsis of the Series infraspinosa (Diptera: Psychodidae)

Freitas

Barrett

2002

Mem. Inst. Oswaldo Cruz

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Lutzomyia derelicta (Diptera: Psychodidae) a singular new phlebotomine sand fly from an inselberg in northeastern amazonia

Cited by 5 publications

References 10 publications

Analysis of the sex pheromone extract of individual male Lutzomyia longipalpis sandflies from six regions in Brazil

Analysis of the sex pheromone extract of individual male Lutzomyia longipalpis sandflies from six regions in Brazil

Lutzomyia maruaga (Diptera: Psychodidae), a new bat-cave sand fly from Amazonas, Brazil

Descriptions of Lutzomyia (Evandromyia) georgii n. sp. and a Synopsis of the Series infraspinosa (Diptera: Psychodidae)

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