| [triatoma maculata (erickson, 1848), a common species in goias (triatominae, reduviidae)]. | | 1969 | 4919859 |
| the culture of embryonic cells from the bug triatoma maculata (erichson) (hemiptera: reduviidae). | | 1967 | 6022574 |
| epidemiology of trypanosoma cruzi in the oriental plains of colombia. | epidemiologic studies to define the domiciliary and extradomiciliary transmission cycles of trypanosoma cruzi and trypanosoma rangeli in the oriental plains of colombia were conducted in the gallery forests near carimagua and el porvenir. one-hundred and seven palm trees belonging to nine genera were examined; triatomines were found in only three palm species, the leaves of which are locally used for roof thatching: 2/29 maximiliana elegans, 1/7 mauritia flexuosa and 7/7 scheelea sp. bugs were a ... | 1984 | 6439062 |
| on the possibility of autochthonous chagas disease in roraima, amazon region, brazil, 2000-2001. | chagas disease has been almost entirely eradicated from the arid zones in central and northeastern brazil where rare or no autochthonous cases have been reported. however, in the last 10 years the disease has increasingly been registered in the amazon region. aiming to investigate the possibility of the occurrence of autochthonous cycle of chagas disease in roraima, triatomine collections, vectorial susceptibility studies (this one to be shown elsewhere), parasitological and serological analyses ... | 2005 | 15729474 |
| a triatoma maculata (hemiptera, reduviidae, triatominae) population from roraima, amazon region, brazil, has some bionomic characteristics of a potential chagas disease vector. | even though chagas disease is rare in the brazilian amazon, the conditions for the establishment of domiciliated cycles prevail in many areas where triatomines are of frequent occurrence. in roraima, a previous serological and entomological survey in three agricultural settlements showed the existence of all transmission cycle elements, i.e., individuals infected by trypanosoma cruzi, triatomine species previously found harboring t. cruzi in the broader amazon region of neighboring countries and ... | 2005 | 16021285 |
| [triatomines (reduviidae: triatominae) in a chagas disease focus in talaigua nuevo (bolívar, colombia)]. | the epidemiological importance and ecological characteristics of triatomines were investigated in a chagas disease focus in talaigua nuevo, bolivar province. | 2005 | 16433183 |
| could the chagas disease elimination programme in venezuela be compromised by reinvasion of houses by sylvatic rhodnius prolixus bug populations? | the andean pact initiative (1997) committed andean countries to eliminate vectorial transmission of chagas disease by 2010 via widespread residual insecticide spraying. in venezuela, this aim could be compromised by reinvasion of houses by palm tree populations of the major vector rhodnius prolixus. to test this hypothesis, a multivariate logistic regression was undertaken of risk factors for triatomine infestation and colonization in 552 houses and 1068 peri-domestic outbuildings in barinas sta ... | 2006 | 17002733 |
| evolutionary relationships based on genetic and phenetic characters between triatoma maculata, triatoma pseudomaculata and morphologically related species (reduviidae: triatominae). | the maculata group currently comprises two species of triatominae, triatoma maculata and triatoma pseudomaculata, which share morphologic and chromatic characteristics. in order to clarify the systematic status of these two vectors of trypanosoma cruzi and to infer their evolutionary relationships, we performed an enzymatic, morphometric and cytogenetic comparison of them, also taking into account two sister species not included in the group (t. arthurneivai and t. wygodzinskyi). according to ou ... | 2007 | 17336167 |
| [defecation index and reproductive success of triatoma maculata (hemiptera: reduviidae) under laboratory conditions]. | the reproductive and defecating behavior of triatoma maculata (erichson 1848) was studied on animals from an university culture in venezuela. this species does not reach the importance of rhodnius prolixus stal 1859 as chagas disease vector in venezuela. this study addressed the role of defecating frequency, an index of how dangerous the animals are for the human population, and its relationship with why t. maculata is a less important vector than r. prolixus. human blood was fed to the insects ... | 2004 | 17354403 |
| biological aspects of crosses between triatoma maculata (erichson, 1848) and triatoma pseudomaculata corrêa & espínola, 1964 (hemiptera: reduviidae). | due to morphological similarities between triatoma maculata and t. pseudomaculata, which comprise the "maculate complex", both had been regarded as the same species until 1964. considering that the studies on triatomine hybridization permit hypotheses formulation concerning origin and divergence of species, enabling a quantitative analysis of taxonomic relationships between species, the present investigation was aimed at broadening further understanding related to the capacity of hybrid producti ... | 2007 | 17612773 |
| [toxic effect of beta-cipermethrin, deltamethrin and fenitrothion in colonies of triatoma dimidiata (latreille, 1811) and triatoma maculata (erichson, 1848) (hemiptera, reduviidae)]. | the susceptibility to insecticides of triatomine species must be evaluated because of their involvement in the transmission of the chagas disease. in each region with chagas endemicity, evaluation of insecticide response is necessary to predict the success of the control campaigns. | 2007 | 18154247 |
| [updated geographical distribution and ecoepidemiology of the triatomine fauna (reduviidae: triatominae) in colombia]. | information concerning triatomine records from provinces and municipalities was accumulated-including data indicating natural infections with trypanosomatides-that has been previously published or reported by colombian provincial health services and research institutes. altitude appeared to be the main factor responsible for the distribution of the insects. illustrations summarize the information provided by the above records. a triatomine fauna classification is presented that corresponds to th ... | 2007 | 18154255 |
| [an entomological and seroepidemiological study of chagas' disease in an area in central-western venezuela infested with triatoma maculata (erichson 1848)]. | this article presents a study on seroepidemiological, entomologic, and risk factors for domiciliary infestation in a circumscribed area infested with triatoma maculata in parroquia xaguas, urdaneta municipality, lara state, venezuela. one hundred and forty households, 509 persons, and 110 dogs were sampled. serum anti-trypanosoma cruzi antibodies were determined by means of elisa and maba techniques using recombinant antigens. tr. cruzi infection in the triatomines was determined by direct micro ... | 2008 | 18949234 |
| the triatominae species of french guiana (heteroptera: reduviidae). | an annotated list of the triatomine species present in french guiana is given. it is based on field collections carried out between 1993-2008, museum collections and a literature review. fourteen species, representing four tribes and six genera, are now known in this country and are illustrated (habitus). three species are recorded from french guiana for the first time: cavernicola pilosa, microtriatoma trinidadensis and rhodnius paraensis. the two most common and widely distributed species are ... | 2009 | 20140371 |
| commercial coconut palm as an ecotope of chagas disease vectors in north-eastern venezuela. | there are few reports of coccus nucifera (palmae) infestation by triatomines (hemiptera, reduviidae, triatominae), vectors of trypanosoma cruzi (kinetoplastida: trypanosomatidae), the causal agent of american trypanosomiasis. the aim of this study was to determine if this palm is an appropriate ecotope for rhodnius prolixus and triatoma maculata, the main vectors in venezuela. | 2010 | 20539044 |
| [viability and spatial structuring in a triatoma maculata (hemiptera: reduviidae) laboratory colony fed with human blood]. | immature and adult forms of triatoma maculata have been captured repeatedly in and around the homes in the town of xaguas, venezuela. because of its potential as a chagas disease vector, a study was undertaken to evaluate the effect of human blood feeding on the viability and spatial structuring of a laboratory colony of this species. | 2010 | 20890552 |
| [distribution and ecoepidemiology of the triatomine fauna (hemiptera: reduviidae) in margarita island, bol+¡var, colombia]. | information concerning to triatomine diversity and some eco-epidemiologic aspects on margarita island has been recorded only from two of the five counties on the island. knowledge about species habitat and their natural infection is essential to establish the risk for chagas disease in endemic areas. | 2010 | 21713340 |
| triatoma maculata colonises urban domicilies in boa vista, roraima, brazil. | during a medical entomology course in boa vista, roraima, colonies of triatoma maculata closely associated with pigeon nests were observed in concrete air-conditioner box located on the external plastered and cemented walls of a modern brick-built apartment block. in only one eight-hole ceramic brick, located inside one air-conditioner box, 127 specimens of t. maculata were collected. t. maculata is a recognised vector of trypanosoma cruzi in the surrounding area and its domiciliation increases ... | 2016 | 27759767 |
| triatoma maculata, the vector of trypanosoma cruzi, in venezuela. phenotypic and genotypic variability as potential indicator of vector displacement into the domestic habitat. | triatoma maculata is a wild vector of trypanosoma cruzi, the causative agent of chagas disease; its incursion in the domestic habitat is scant. in order to establish the possible domestic habitat of t. maculata, we evaluated wing variability and polymorphism of genotypic markers in subpopulations of t. maculata that live in different habitats in venezuela. as markers, we used the mtcyt b gene, previously apply to evaluate population genetic structure in triatomine species, and the β-tubulin gene ... | 2014 | 25325053 |
| eco-epidemiological study of an endemic chagas disease region in northern colombia reveals the importance of triatoma maculata (hemiptera: reduviidae), dogs and didelphis marsupialis in trypanosoma cruzi maintenance. | in colombia, rhodnius prolixus and triatoma dimidiata are the main domestic triatomine species known to transmit t. cruzi. however, there are multiple reports of t. cruzi transmission involving secondary vectors. in this work, we carried out an eco-epidemiological study on margarita island, located in the caribbean region of colombia, where chagas disease is associated with non-domiciliated vectors. | 2015 | 26394766 |
| potential distribution of chagas disease vectors (hemiptera, reduviidae, triatominae) in colombia, based on ecological niche modeling. | ecological niche modeling of triatominae bugs allow us to establish the local risk of transmission of the parasite trypanosoma cruzi, which causes chagas disease. this information could help to guide health authority recommendations on infection monitoring, prevention, and control. in this study, we estimated the geographic distribution of triatomine species in colombia and identified the relationship between landscape structure and climatic factors influencing their occurrence. a total of 2451 ... | 2016 | 28115946 |
| untangling the transmission dynamics of primary and secondary vectors of trypanosoma cruzi in colombia: parasite infection, feeding sources and discrete typing units. | trypanosoma cruzi is the causative agent of chagas disease. due to its genetic diversity has been classified into six discrete typing units (dtus) in association with transmission cycles. in colombia, natural t. cruzi infection has been detected in 15 triatomine species. there is scarce information regarding the infection rates, dtus and feeding preferences of secondary vectors. therefore, the aim of this study was to determine t. cruzi infection rates, parasite dtu, ecotopes, insect stages, geo ... | 2016 | 27903288 |
| human trypanosomiasis in the eastern plains of colombia: new transmission scenario. | characteristics of trypanosoma cruzi infection were studied in a rural area of the eastern plains of colombia. using enzyme-linked immunosorbent assay and indirect fluorescent-antibody tests, the infection was determined in 11.6% of the inhabitants of 142 dwellings. during 6 months of community surveillance, in 42.3% dwellings, 609 triatomines were collected (597 rhodnius prolixus and seven, three, one, and one of panstrongylus geniculatus, psammolestes arturi, eratyrus mucronatus, and triatoma ... | 2016 | 26728765 |
| risks associated with dispersive nocturnal flights of sylvatic triatominae to artificial lights in a model house in the northeastern plains of colombia. | control initiatives and continuous surveillance of vector-borne transmission have proved to be effective measures for diminishing the incidence of chagas disease in endemic countries. however, the active dispersal of infected sylvatic adult triatomines by flight represents one of the main obstacles to eliminating domestic transmission. | 2015 | 26582012 |
| global climate change effects on venezuela's vulnerability to chagas disease is linked to the geographic distribution of five triatomine species. | we analyzed the possible effects of global climate change on the potential geographic distribution in venezuela of five species of triatomines (eratyrus mucronatus (stal, 1859), panstrongylus geniculatus (latreille, 1811), rhodnius prolixus (stål, 1859), rhodnius robustus (larrousse, 1927), and triatoma maculata (erichson, 1848)), vectors of trypanosoma cruzi, the etiological agent of chagas disease. to obtain the future potential geographic distributions, expressed as climatic niche suitability ... | 2015 | 26336258 |
| panstrongylus geniculatus and four other species of triatomine bug involved in the trypanosoma cruzi enzootic cycle: high risk factors for chagas' disease transmission in the metropolitan district of caracas, venezuela. | chagas' disease is caused by the protozoan trypanosoma cruzi and is autochthonous to the americas. its distribution depends on triatomine bugs that are responsible for the transmission of the disease. in 2005, we reported the presence of panstrongylus geniculatus as a risk for chagas' disease transmission in caracas and neighboring areas. three massive oral outbreaks occurred in the following years. here we report the results of a 7-year study on triatomine species found in the metropolitan dist ... | 2014 | 25532708 |
| the main sceneries of chagas disease transmission. the vectors, blood and oral transmissions--a comprehensive review. | this review deals with transmission of trypanosoma cruzi by the most important domestic vectors, blood transfusion and oral intake. among the vectors, triatoma infestans, panstrongylus megistus, rhodnius prolixus, triatoma dimidiata, triatoma brasiliensis, triatoma pseudomaculata, triatoma sordida, triatoma maculata, panstrongylus geniculatus, rhodnius ecuadoriensis and rhodnius pallescens can be highlighted. transmission of chagas infection, which has been brought under control in some countrie ... | 2015 | 25466622 |
| first record of triatoma maculata (erichson, 1848) (hemiptera: reduviidae: triatomini) in the municipality of riohacha, la guajira - colombia. | knowledge of vector insect species, their habitat, and geographical distribution is crucial for determining the risk of transmission of the etiological agents that cause disease in humans, which allows defining strategies for prevention, surveillance, and control in line with the characteristics of each area. | 2014 | 25426481 |
| [attalea butyracea palms adjacent to housing as a source of infestation by rhodnius prolixus (hemiptera: reduviidae)]. | the presence of rhodnius prolixus in palms on the eastern plains area of colombia provide a high risk for infection with trypanosoma cruzi. intensive surveillance of the palm tree habitat are necessary to confirm the presence of bugs and provide evidence that this habitat is a source of house infestations. | 2012 | 23242302 |
| the association of triatoma maculata (ericsson 1848) with the gecko thecadactylus rapicauda (houttuyn 1782) (reptilia: squamata: gekkonidae): a strategy of domiciliation of the chagas disease peridomestic vector in venezuela? | to investigate the bioecological relationship between chagas disease peridomestic vectors and reptiles as source of feeding. | 2011 | 23569775 |
| cytogenetic analysis of triatoma pseudomaculata corrêa and espínola, 1964 (hemiptera, triatominae) from different brazilian states. | triatoma maculata and t. pseudomaculata are allopatric; however, it is believed that t. maculata was introduced into the brazilian northeast by passive transportation of the nymphs between the feathers of migratory birds, followed by the speciation of t. pseudomaculata. t. pseudomaculata is the second most epidemiologically important species in the northeast of brazil after t. brasiliensis. therefore, given the broad range of t. pseudomaculata, the objective of the present study was to cytogenet ... | 2016 | 27051018 |
| population differentiation of the chagas disease vector triatoma maculata (erichson, 1848) from colombia and venezuela. | the emerging vector of chagas disease, triatoma maculata (hemiptera, reduviidae), is one of the most widely distributed triatoma species in northern south america. despite its increasing relevance as a vector, no consistent picture of the magnitude of genetic and phenetic diversity has yet been developed. here, several populations of t. maculata from eleven colombia and venezuela localities were analyzed based on the morphometry of wings and the mitochondrial nadh dehydrogenase subunit 4 (nd4) g ... | 2016 | 27232127 |
| inferences about antennal phenotype: the "triatoma maculata complex" (hemiptera: triatominae) is valid? | the "triatoma maculata complex" is presently formed by two epidemiologically important species of triatominae, triatoma maculata and triatoma pseudomaculata, which share morphologic and chromatic characteristics. in order to clarify the systematic status and infer the evolutionary relationships of these vectors of chagas disease, we performed a comparative analysis of their antennal phenotype, taking also into account triatoma wygodzinskyi, a possible sister species. the comparison was based on ... | 2008 | 18282553 |
| experimental parasitization of eggs of triatoma maculata (erichson) by the oriental microhymenopteran, gryon triatomae masner and comment on the susceptibility of other neotropical triatomines. | the oriental microhymenopteran wasp, gryon triatomae masner, 1975 was reared in eggs of triatomine bugs, including vectors of chagas' disease. in particular, g. triatomae was maintained for 31 generations in eggs of triatoma maculata (erichson). only one parasite develops in each bug egg and 30 to 40 days are required for completion of development at 24 +/- 1 degrees c. mean parasitization rate of 7484 eggs of t. maculata, in 54 rearings, was 34.7% with a range from zero to the highest rate of 8 ... | 1983 | 6356503 |
| [description of external cuticular setae of head, thorax, legs, abdomen and genitalia of four triatominae species]. | the classification of the cuticular extensions of insects has been proposed as a taxonomic tool; however, the internal and external processes of the cuticular extensions of the triatominae subfamily have not been fully analyzed and categorized. objective: to describe the setae from different regions of the outer cuticle of several triatomine species by scanning electron microscopy. materials and methods: triatomines were washed and dried, after which different regions of the body from eratyrus m ... | 2016 | 27869382 |
| [triatominae species] | this paper provides a checklist of 15 known species of the triatominae subfamily in maranhão state. on the coastal são luís island there are a total of 10 species associated with sylvatic areas (eratyrus mucronatus, psammolestes tertius, panstrongylus diasi) and periurban and urban areas (panstrongylus geniculatus, panstrongylus lignarius, rhodnius nasutus, rhodnius neglectus, rhodnius pictipes, rhodnius robustus and triatoma rubrofasciata). the last was found only on são luís island, while the ... | 1998 | 9592224 |
| 16s rrna gene amplicon sequencing reveals dominance of actinobacteria in rhodnius pallescens compared to triatoma maculata midgut microbiota in natural populations of vector insects from colombia. | chagas disease affects more than 6 million people in latin america, it is a parasitic disease caused by the protozoan trypanosoma cruzi, which is transmitted mainly by bloodsucking insects of the triatominae subfamily. studies on microbial communities that inhabit the insect gut are important to understanding their role in the parasite transmission and development. the present work aims to evaluate the gut bacterial composition of natural populations of triatomine species from vichada and magdal ... | 2018 | 29154947 |
| parasitization by the microhymenopteran gryon triatomae masner of eggs of triatoma maculata (erichson) in holes and mazes of artificial walls. | oriental parasitoid wasps, gryon triatomae, were confined for several weeks in transparent tanks (400 x 180 x 200 mm) with eggs of the neotropical triatomine bug triatoma maculata. the eggs were lodged in moulded holes (about 50 mm deep and 15 mm diameter) of polystyrene blocks, to simulate walls. the blocks were arranged with the holes either vertical or horizontal; openings of the holes were either 5 mm or 15 mm diameter. one wall included three mazes of linked holes, each maze with one entran ... | 1983 | 6356504 |
| occurrence of lipoprotein lipase in the fat-body of triatoma maculata. | | 1975 | 1106941 |