| dispersal of triatoma infestans and other triatominae species in the arid chaco of argentina: flying, walking or passive carriage? the importance of walking females. | the aim of this paper was to analyse the active dispersal of triatoma infestans and the role of chickens as passive carriers of this insect in peridomestic areas of la rioja, argentina. to measure active dispersal, monthly catches were made on six consecutive nights for five months (in the warm season) using light traps (for flying insects) and sticky dispersal barriers (for walking insects). the nutritional and reproductive states of adults were evaluated. over the course of the sampling period ... | 2011 | 21537686 |
| host-feeding sources and infection with trypanosoma cruzi of triatoma infestans and triatoma eratyrusiformis (hemiptera: reduviidae) from the calchaqui valleys in northwestern argentina. | we assessed the prevalence of infection with trypanosoma cruzi, parasite genotypes (discrete typing units, dtus), and the host-feeding sources of domestic and peridomestic triatoma infestans klug and triatoma eratyrusiformis del ponte in eight rural communities of the subandean calchaqui valleys in northwestern argentina. we sought to analyze their epidemiological role in the context of routine vector surveillance and control actions. infection with t. cruzi was determined by optic microscopy or ... | 2016 | 26849898 |
| phylogenetic incongruence inferred with two mitochondrial genes in mepraia spp. and triatoma eratyrusiformis(hemiptera, reduviidae). | mitochondrial dna (mtdna) is widely used to clarify phylogenetic relationships among and within species, and to determine population structure. due to the linked nature of mtdna genes it is expected that different genes will show similar results. phylogenetic incongruence using mtdna genes may result from processes such as heteroplasmy, nuclear integration of mitochondrial genes, polymerase errors, contamination, and recombination. in this study we used sequences from two mitochondrial genes (cy ... | 2017 | 26500444 |
| seasonality and temperature-dependent flight dispersal of triatoma infestans (hemiptera: reduviidae) and other vectors of chagas disease in western argentina. | flight dispersal of triatominae is affected by climatic conditions and determines the spatiotemporal patterns of house invasion and transmission of trypanosoma cruzi chagas (kinetoplastida: trypanosomatidae). we investigated the detailed time structure and temperature dependencies of flight occurrence of triatoma infestans klug (hemiptera: reduviidae) and other triatomine species in a rural village of western argentina by taking advantage of the attraction of adult triatomines to artificial ligh ... | 2017 | 28605522 |
| association between antennal phenotype, wing polymorphism and sex in the genus mepraia (reduviidae: triatominae). | mepraia spinolai and mepraia gajardoi (hemiptera, reduviidae) are only found in the arid regions of northern chile. mepraia is the only genus of triatominae with marked wing polymorphism. females of both species are micropterous, males of m. spinolai may be micropterous, brachypterous or macropterous, while males of m. gajardoi are always brachypterous. because of this wing polymorphism, mepraia can be used as a model to analyze morphological adaptations related to the flying activity and evolut ... | 2006 | 16081323 |