[microhabitats of aedes albopictus (skuse) in the region of the paraiba valley, são paulo state, brazil].the objective of this study was the determination of extent of the spatial distribution of aedes albopictus in the paraíba river valley, state s. paulo, brazil. thus, collections of larvae and pupae mosquitoes were carried out at six sites distributed along a transection with a 10-km extension. the target was the tree-holes but artificial containers were also used in this investigation. aedes terrens and ae. albopictus were the only species of genus aedes present in the tree-holes mentioned. the ...19921307425
a comparative study of the effect of multiple immersions on aedini (diptera: culicidae) mosquito eggs with emphasis on sylvan vectors of yellow fever virus.the effect of multiple immersions on haemagogus janthinomys , haemagogus leucocelaenus , aedes albopictus and ochlerotatus terrens eggs was studied. eggs were collected in april, june, october and december of 2011 in minas gerais, brazil. most of the aedes and ochlerotatus eggs hatched upon the first immersion, while haemagogus eggs showed a varied instalment hatching response. the number of immersions required for hatching increased for eggs collected closer to the dry winter season.201324626304
flight height preference for oviposition of mosquito (diptera: culicidae) vectors of sylvatic yellow fever virus near the hydroelectric reservoir of simplício, minas gerais, this study, the oviposition behavior of mosquito species exhibiting acrodendrophilic habits was investigated. the study was conducted near the simplicio hydroelectic reservoir (shr) located on the border of the states of minas gerais and rio de janeiro, brazil. samples were collected using oviposition traps installed in forest vegetation cover between 1.70 and 4.30 m above ground level during the months of april, june, august, october, and december of 2011. haemagogus janthinomys (dyar), haem ...201323926776
high risk for chikungunya virus to initiate an enzootic sylvatic cycle in the tropical americas.chikungunya virus (chikv) has dispersed in the americas since 2013, and its range of distribution has overlapped large forested areas. herein, we assess vector competence of two sylvatic neotropical mosquito species, haemagogus leucocelaenus and aedes terrens, to evaluate the risk of chikv to initiate a sylvatic cycle in the continent.201728662031
tree hole mosquito species composition and relative abundances differ between urban and adjacent forest habitats in northwestern argentina.water-holding tree holes are main larval habitats for many pathogen vectors, especially mosquitoes (diptera: culicidae). along 3 years, the diversity and composition of mosquito species in tree holes of two neighbouring but completely different environments, a city and its adjacent forest, were compared using generalized linear mixed models, permanova, simper and species association indexes. the city area (northwest argentina) is highly relevant epidemiologically due to the presence of aedes aeg ...201728770688
low vector competence in sylvatic mosquitoes limits zika virus to initiate an enzootic cycle in south america.zika virus (zikv) has spread in the americas since 2015 and the potential establishment of a sylvatic transmission cycle in the continent has been hypothesized. we evaluated vector competence of five sylvatic neotropical mosquito species to two zikv isolates. distinct batches of haemagogus leucoceleanus, sabethes albiprivus, sabethes identicus, aedes terrens and aedes scapularis females were respectively orally challenged and inoculated intrathoracically with zikv. orally challenged mosquitoes w ...201931882976
mosquitoes of the caatinga. iii. larval habitats, frequency, and dynamics of immature and adult stages in a dry brazilian forest.even though the seasonally dry tropical caatinga forest is an historically neglected biome, recent studies have enhanced our knowledge of its biodiversity. we investigated larval habitats as well as the frequency and dynamics of immature and adult culicidae in a conservation unit within the caatinga in the brazilian state of sergipe. we carried out monthly surveys between july 2011 and october 2012 to count both immature (tree holes, bromeliad tanks, ponds, and rock holes and depressions) and ad ...201930247710
observations on haemagogus janthinomys dyar (diptera: culicidae) and other mosquito populations within tree holes in a gallery forest in the northwestern region of sao paulo state, 2000, an outbreak of sylvatic yellow fever possibly occurred in gallery forests of the grande river in the paraná basin in the northwestern region of são paulo state. the aim of this study was to obtain information on the bionomics of haemagogus and other mosquitoes inside tree holes in that area. eighteen open tree holes were sampled for immature specimens. adults were collected twice a month in the forest in santa albertina county from july 2000 to june 2001. the seasonal frequency of fourt ...201020878007
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