ABSTRACT
The high proportion of cases of cutaneous leishmaniasis reported amongst residents in the city of Bandeirantes, in the state of Paraná, Brazil, led the authors to investigate the phlebotomine fauna in both urban and rural environments. The sandflies were captured with automatic light traps from 07:00 pm-07:00 am fortnightly in 11 urban peridomiciles from April 2008-March 2009 and monthly in three ecotopes within four rural localities from April 2009-March 2010. In one of these latter localities, sandfly capture was conducted with white/black Shannon traps during each of three seasons: spring, summer and fall. A total of 5,729 sandflies of 17 species were captured. Nyssomyia neivai (46.7%) and Nyssomyia whitmani (35.3%) were the predominant species. In this study, 3,865 specimens were captured with automatic light traps: 22 (0.083 sandflies/trap) in the urban areas and 3,843 (26.69 sandflies/trap) in the rural areas. Ny. neivai was predominant in urban (68.2%) and rural (42.8%) areas. A total of 1,864 specimens were captured with the white/black Shannon traps and Ny. neivai (54.5%) and Ny. whitmani (31.4%) were the predominant species captured. The small numbers of sandflies captured in the urban areas suggest that the transmission of Leishmania has occurred in the rural area due to Ny. neivai and Ny. whitmani as the probable vectors.
Subject(s)
Animals , Female , Humans , Male , Insect Vectors/classification , Psychodidae/classification , Brazil , Leishmaniasis, Cutaneous/transmission , Population Density , Rural Population , Seasons , Urban PopulationABSTRACT
The description of Micropygomyia brandaoi, a new species of fossil phlebotomine sand fly, is based on one male specimen obtained from Dominican amber of the Miocene period (20 million years). In this new species, the fifth palpal segment is long, the coxite lacks a setal tuft and the style shows four well-developed spines. This set of characters allowed us to place the new species in the genus Micropygomyia Barretto.
Subject(s)
Animals , Male , Fossils , Psychodidae/classification , Amber , Dominican Republic , Psychodidae/anatomy & histologyABSTRACT
Both sexes of a new phlebotomine sandfly species Micropygomyia (Sauromyia) vonatzingeni sp. nov. (Diptera, Psychodidae), captured in the Serra das Andorinhas, São Geraldo do Araguaia municipality, Pará state, and Cavalcante municipality, Tocantins state, Brazil, are described and illustrated. This new species belongs to the oswaldoi series and its distinction from the other extant species of the series was made by male and female identification keys. The specific geographical distribution of the oswaldoi series by country and department (or state) is presented.
Ambos os sexos de uma nova espécie de flebotomíneos Micropygomyia (Sauromyia) vonatzingeni sp. nov. (Diptera, Psychodidae) capturada na Serra das Andorinhas, município de São Geraldo do Araguaia, Estado do Pará e no município de Cavalcante, Estado de Tocantins, Brasil são descritos e ilustrados. Esta nova espécie pertence a série oswaldoi e a sua distinção das demais espécies não fósseis da série foi feita por meio de chave de identificação para machos e fêmeas. Apresenta-se a distribuição geográfica das espécies da série oswaldoi, por país e estado (ou departamento).
Subject(s)
Animals , Male , Female , Psychodidae/anatomy & histology , Psychodidae/classification , Residence Characteristics , BrazilABSTRACT
A new fossil species of phlebotomine sandflies is described from Dominican amber based in one specimen. Pintomyia (Pifanomyia) paleotrichia sp. nov. is distinguished from the other extant and extinct species by aspects of paramere and the basal tuft of bristles in the gonocoxite.
Subject(s)
Animals , Male , Fossils , Psychodidae/anatomy & histology , Amber , Dominican Republic , Psychodidae/classificationABSTRACT
A male of a new species Micropygomyia (Micropygomyia) ancashensis sp. nov. and a female of the Lutzomyia (Helcocyrtomyia) chavinensis Pérez & Ogusuku, 1999 captured in the Antonio Raymondi province, department of Ancash, Peru are described and illustrated. The new species belongs to the cayennensis series, being closest to Mi. lewisi (Feliciangeli Ordoñez & Férnandez) though presenting highly sclerotized pseudotracheae on the labella that seem to constitute an autapomorphy among American Phlebotominae, and a clypeus almost completely covered with setae, as in Warileya. The female of Lu. chavinensis is close to those of Lu. blancasi Galati & Cáceres 1990, Lu. noguchii (Shannon, 1929), and Lu. pallidithorax Galati & Cáceres 1994.
Subject(s)
Animals , Female , Male , Psychodidae/anatomy & histology , Psychodidae/classification , PeruABSTRACT
The male of Brumptomyia angelae, sp. nov., a new species of Phlebotominae (Diptera, Psychodidae) of the Atlantic forest of the state of Paraná, Brazil, is described and illustrated. This new taxon is closely related to Brumptomyia ortizi Martins, Silva & Falcão 1971, Brumptomyia nitzulescui (Costa Lima, 1932), and Brumptomyia troglodytes (Lutz, 1922). The male genitalia of these three latter species have also been drawn.
Subject(s)
Animals , Male , Psychodidae/anatomy & histology , Psychodidae/classification , Trees , BrazilABSTRACT
The capture of a new species of the subgenus Migonemyia Galati, 1995 (Diptera, Psychodidae, Phlebotominae), Migonemyia vaniae sp. nov. in the Ribeira Valley, state of São Paulo, Brazil, together with the other two species: Mg. migonei (França, 1920) and Mg. rabelloi (Galati & Gomes, 1992) lead us to review this subgenus. The new species was described and illustrated. The genitalia of the two other species were also illustrated and some genital characteristics (number of setae on the gonocoxite tuft, ejaculatory ducts and pump and ducts/pump ratio; and number of setae on the tergite VIII of the females) considered important to differentiate the three species, including five populations of Mg. migonei (from Northeastern, Southeastern, and Southern Brazilian regions and of Peru) were submitted to variance analyses. The Mg. migonei population of Northeastern Brazilian region showed distinct smaller values (P < 0.05) than the other Brazilian populations studied as regarding these characteristics. The capture of both sexes of these three species in sympatry confirms the association between the sexes of Mg. rabelloi, recognised as doubtful when this species was originally described. Identification keys for male and female of the three species are presented.
Subject(s)
Animals , Female , Male , Phlebotomus/anatomy & histology , Phlebotomus/classification , BrazilABSTRACT
Nyssomyia intermedia (Lutz & Neiva 1912) and N. neivai (Pinto 1926) are possible vectors of tegumentary leishmaniasis in some regions of Brazil. Further, the latter was until recently, considered a junior synonym of the former. This study has the purpose of updating our knowledge of the geographical distribution of these species, based on specimens deposited at the collection of the Centro de Pesquisas René Rachou-Fiocruz, Faculdade de Saúde Pública-Universidade de São Paulo, and on data presented by literature as also to associate this distribution with the cutaneous leishmaniasis cases reported. It has been reported that N. intermedia occurs in the states of the Northeastern Region, in Rio de Janeiro, Espírito Santo, on the northern coast of São Paulo, in eastern Minas Gerais, Mato Grosso do Sul, and Goiás, close to the border with Minas Gerais and Bahia. N. neivai occurs in the Southern Region, southern coast and in western São Paulo, southern and western Minas Gerais, southern Goiás, and southern Pará, beyond Argentina, Bolivia, and Paraguay. It is important to highlight that N. intermedia and N. neivai occur in sympatry in Minas Gerais and São Paulo. N. intermedia or N. neivai are predominant or are captured abundantly in several cutaneous leishmaniasis foci in the Southeastern and Southern regions of Brazil.
Subject(s)
Humans , Animals , Geography , Insect Vectors/classification , Psychodidae/classification , Argentina , Bolivia , Brazil , Insect Vectors/physiology , Leishmaniasis, Cutaneous/transmission , Paraguay , Psychodidae/pathogenicityABSTRACT
Phlebotominae includes some vector species, mainly that of leishmaniases, with a very old host-parasite relationship. Some species fossils of this subfamily have been recently described and this paper presents the description of a new sand fly Pintomyia (Pifanomyia) paleotownsendi sp. nov in amber. The gonostyle present four spines, being one apical, one external superior implanted close to the apical third, one external inferior in the middle of the structure and one internal implanted in the basal third. This disposition of the spines may separate the new species from others in the sub genus.
Subject(s)
Animals , Amber , Fossils , Psychodidae , Dominican Republic , Psychodidae/anatomy & histology , Psychodidae/classificationABSTRACT
Nyssomyia intermedia (Lutz & Neiva) and Nyssomyia neivai (Pinto) are morphologically very close and both present great variation in some structures. The objective of this study is a description of the variation among the females of these species in populations from the States of Minas Gerais and São Paulo. The morphological structures studied were the number of horizontal teeth in the cibarium and the number of rings and the shape of the terminal knob of the spermathecae. The spermatheca rings are significantly more numerous in N. intermedia than in N. neivai and the simple shape of the terminal knob predominated in both species. Regarding the cibarium, eight to eleven teeth have been found in both species, with up to twelve teeth in the latter. The number of horizontal teeth and the shape of the terminal knob of the spermathecae were variable throughout the populations of both species and all structures were polymorphic in the populations studied.
Nyssomyia intermedia (Lutz & Neiva) e Nyssomyia neivai (Pinto) são muito semelhantes morfologicamente e ambas apresentam grande variação em algumas estruturas. O objetivo deste estudo foi descrever a variação ocorrida em fêmeas destas espécies, provenientes dos Estados de Minas Gerais e São Paulo. As estruturas morfológicas estudadas foram o número de dentes horizontais no cibário e o número de anéis e forma da cabeça da espermateca. O número de anéis nas espermatecas foi significativamente maior em N. intermedia e forma da cabeça da espermateca simples predominou em ambas. Com relação ao cibário, foi encontrada uma variação de oito a onze dentes horizontais nas duas espécies, chegando a doze em N. intermedia. O número de dentes horizontais e a forma da cabeça da espermateca foram variáveis em todas as populações estudadas e todas as estruturas pesquisadas foram consideradas polimórficas.
Subject(s)
Animals , Female , Genetic Variation , Insect Vectors , Leishmaniasis , Phlebotomus , Polymorphism, Genetic , PsychodidaeABSTRACT
O estudo teve como objetivo identificar a fauna flebotomínea em busca de vetores de leishmanioses. As capturas de flebotomíneos foram realizadas em uma fazenda (18º59'S, 56º39'W) localizada cerca de 150 km da cidade de Corumbá, Mato Grosso do Sul, com armadilhas automáticas luminosas, instaladas em 11 pontos distribuídos em áreas florestais e antrópicas, quinzenalmente, de abril 2001 a julho de 2003. Apenas 41 espécimes de flebotomíneos foram capturados. Nos ambientes florestais foram capturados 31,7 por cento dos espécimes e no antrópico, 68,3 por cento. A predominância de flebotomíneos não antropofílicos e a ínfima densidade de N. whitmani, reconhecidamente vetor de leishmaniose tegumentar, parece não indicar real risco de transmissão desta doença, na área.
Subject(s)
Pest Control, Biological , Insect Vectors , Rural Population , PsychodidaeABSTRACT
A sand fly fossil was found in amber, a vegetal resin, which allows all the external phlebotomine structures to be seen. The piece that contains the new species is 14 mm long ´ 8 mm wide ´ 3 mm high. All the structures from the head, thorax, and abdomen were examined under the microscope and measured with a calibrated micrometric eye-piece. The morphological aspects of the new species suggest its inclusion in the Pintomyia genus, Pifanomyia subgenus though it is not possible to include it in any of the series known for this subgenus. The presence of two atrophied spines on the gonostyles and gonocoxites without tufts of setae permit the exclusion of the new species from the other species of the subgenus Pifanomyia. The new species is named Pintomyia (Pifanomyia) brazilorum sp. nov.
Subject(s)
Animals , Fossils , Psychodidae/anatomy & histology , Amber , Dominican Republic , Psychodidae/classificationABSTRACT
The phlebotomine sand flies Nyssomyia intermedia (Lutz & Neiva, 1912) and Nyssomyia neivai (Pinto, 1926) are very close and may be involved in the transmission of Leishmania spp. Ross, 1903 in Brazil. The biology of the first laboratory-reared generations of these species, descended from insects captured in Além Paraíba (N. intermedia) and Corinto (N. neivai) in the Brazilian state of Minas Gerais, is described here. The captured females were fed on hamsters and maintained individually in rearing pots. Laboratory temperature and relative humidity were maintained at 25-26ºC and 80 percent respectively. The productivity of the first generation of N. intermedia was greater than that of N. neivai, and its development time clearly shorter, particularly for the second and third larval instars.
Subject(s)
Cricetinae , Animals , Male , Female , Insect Vectors , Laboratories , Psychodidae , Reproduction , Sex RatioABSTRACT
During a study of the phlebotomines of the Brazilian state of Tocantins, a new species was discovered in Porto Nacional county, here described as Micropygomyia (Silvamyia) echinatopharynx sp. nov. This is only the second species of the subgenus Micropygomyia (Silvamyia) to be described.
Subject(s)
Animals , Male , Female , Psychodidae , Brazil , PsychodidaeABSTRACT
Lutzomyia chotensis sp. nov. (Diptera, Psychodidae, Phlebotominae) from Cajamarca Department, Peru, is described and its taxonomic position discussed.
ABSTRACT
A new species of phlebotomine, Lutzomyia (Helcocyrtomyia) herreri sp. nov., belonging to the series osornoi, from the Department of Puno, Peru, is described. Identification keys for both sexes of the species of this series are presented.
Subject(s)
Animals , Andean Ecosystem , Psychodidae/classification , Species Specificity , PeruABSTRACT
The phlebotomine sand flies Nyssomyia intermedia and Nyssomyia neivai are the probable vectors of American tegumentary leishmaniasis in the Southern and Southeastern regions of Brazil. These species form a complex, being difficult to separate between either females or males of the two members based on recognized morphological characteristics. Both N. intermedia and N. neivai are redescribed here in the search for characters that facilitate their correct identification. It was possible to differentiate females by means of spermathecal characteristics. Males could be separated with confidence by the tips of the genital filaments, which have the form of a deep spoon, the angle of the concavity being well accentuated in N. intermedia and much shallower in N. neivai.
Subject(s)
Animals , Male , Female , PsychodidaeABSTRACT
The female of Sciopemyia servulolimai (Damasceno & Causey), based on three specimens captured during an epidemiological research project in the state of Ceará, Brazil, is described and illustrated for the first time
Subject(s)
Animals , Female , Psychodidae , Brazil , PsychodidaeABSTRACT
Micropygomyia (Sauromyia) petari sp. nov. (Diptera, Psychodidae, Phlebotominae) from speleological province of the Vale do Ribeira, São Paulo State, Brazil, is described and illustrated. This new taxon belongs to oswaldoi series.
Subject(s)
Psychodidae , Brazil , Species SpecificityABSTRACT
En localidades ubicadas entre los distritos de San José de Lourdes (06 grados 05'30''Longitud Sur), provincia de San Ignacio y Lonya Grande(06 grados 05'30'' Longitud Sur), provincia de Utcubamba, Región Nor Oriental del Marañón, donde la bartonellosis humana o Verruga Peruana es endémica, se capturaron 2774 flebótomos entre 1987 y 1992; identificándose 13 especies; 1 1 corresponden al género Lutzomyia, 1 a Brumptomyia y 1 a Warileya. De las especies capturadas, Lutzomyia sp. similar a Lutzomyia serrana y Lutzomyia maranonensis sp. n., Galati, Cáceres & Le Pont, son las mas abundantes (89.74 por ciento), por lo que, se especula que pueden ser consideradas vectores potenciales de la Verruga Peruana. Se reporta Lutzomyia verrucarum (Townsend, 1913) por primera vez para la provincia de Utcubamba.