| new tick records in rondônia, western brazilian amazon. | in the present study, we provide new tick records from vilhena municipality, in the southeast of the state of rondônia, northern brazil. ticks collected from a capybara, hydrochoerus hydrochaeris (linnaeus), were identified as amblyomma romitii tonelli-rondelli (1 female), and amblyomma sp. (1 larva). ticks collected from a harpy eagle, harpia harpyja (linnaeus), were identified as amblyomma cajennense (fabricius) (16 nymphs) and haemaphysalis juxtakochi cooley (1 nymph). ticks collected from a ... | 2010 | 20943027 |
| new tick records from the state of rondônia, western amazon, brazil. | from 2005 to 2012, ticks were collected from different hosts at different localities of the state of rondônia. the following 16 ixodid tick species were identified: ixodes fuscipes, amblyomma auricularium, amblyomma coelebs, amblyomma dubitatum, amblyomma geayi, amblyomma humerale, amblyomma latepunctatum, amblyomma longirostre, amblyomma naponense, amblyomma nodosum, amblyomma oblongoguttatum, amblyomma ovale, amblyomma romitii, amblyomma rotundatum, amblyomma scalpturatum, and amblyomma varium ... | 2014 | 23975565 |
| rickettsial infection in ticks (acari: ixodidae) of wild animals in midwestern brazil. | ticks collected in the last two decades from free-living and captive wild animals from 28 municipalities of the brazilian state of mato grosso were identified and tested using molecular methods for the presence of rickettsial agents. a total of 4467 ticks (229 larvae, 1676 nymphs, 1565 males, 997 females) representing 27 ixodid species were collected from 235 species of amphibians, reptiles, birds, and mammals from three different ecoregions (pantanal, cerrado, and amazonia). the species amblyom ... | 2016 | 26775021 |
| new records of amblyomma goeldii (acari: ixodidae) and description of the nymphal stage. | since its original description from the amazonian region, the tick species amblyomma goeldii neumann, 1899 has been misidentified with amblyomma rotundatum koch, 1844 in different countries of the neotropical region. because of this, some authors have considered that the only confirmed records of a. goeldii were from french guyana. herein, we reviewed all specimens of a. goeldii that have been deposited at two tick collections in brazil. in addition, we describe the nymphal stage of a. goeldii f ... | 2015 | 25947818 |
| life cycle of amblyomma romitii (acari: ixodidae) under laboratory conditions. | the life cycle of amblyomma romitii tonelli-rondelli, 1939 is reported for the first time, using rabbits (oryctolagus cuniculus) for larvae and capybara (hydrochoerus hydrochaeris) for nymphs and adults, as experimental hosts. developmental periods of free-living stages were observed in an incubator at 27 ± 1°c, 80 ± 10% relative humidity (rh), and 24-h darkness. the life cycle of a. romitii in the laboratory could be completed in an average period of 216.4 d. the overall sex ratio (m:f) was 1:1 ... | 2016 | 26487244 |
| description of larva of amblyomma romitii (acari: ixodidae) by optical and scanning electron microscopy, including porotaxy and phylogenetic analysis. | the description of the larva of amblyomma romitii tonelli-rondelli is based on optical and scanning electron microscopy. larvae were obtained under laboratory conditions from an engorged female collected on capybara from rurópolis municipality, state of pará, northern brazil. several characters are presented including the chaetotaxy of idiosoma, palpi and haller's organ. the larval porotaxy (topographical and numerical patterns of integumentary structures) was presented and compared to that of t ... | 2013 | 23114657 |
| validation and redescription of amblyomma romitii tonelli-rondelli, 1939 (acari: ixodidae). | the current synonymy of amblyomma romitii tonelli-rondelli, 1939, a neotropical species, with the oriental species a. extraoculatum neumann, 1899 is discussed. the type-specimens of both species were examined and their morphological differences determined. considering their morphology and their different continental origins, we are reasonably certain that both taxa are valid. the type-specimen of a. extraoculatum is a female labelled as being from singapore. this is the only locality data on thi ... | 2007 | 17464485 |