Parasitism of a capybara (Hydrochoerus hydrochaeris) by Amblyomma nodosum Neumann, 1899 and Amblyomma humerale Koch, 1844 in an Amazon forest area, Rondônia, Brazil

First report of unusual case of parasitism by Amblyomma nodosum (Neumann, 1889) in a yellow cururu toad (Rhinella icterica) in the Northeastern Brazilian Caatinga

“…Although there is a lack of reports of A. nodosum ticks parasitizing hosts other than anteaters, in a few cases those ticks have been reported parasitizing unconventional hosts. Unexpected parasitism by A. nodosum has been reported in mammals, including a capybara [ Hydrochoerus hydrocharesis (Rodentia: Caviidae)] in the state of Rondônia, northern Brazil (Amazon Rainforest biome) and a domestic dog [ Canis familiaris (Carnivora: Canidae)] from the state of Espírito Santo, southeastern Brazil (Atlantic Forest biome) ( Fuverki et al, 2021 ; Mazioli et al, 2012 ). On the other hand, A. nodosum immature specimens are commonly found on birds, especially Passeriformes ( Guglielmone et al, 2021 ).…”

“…Among ixodid ticks, the Amblyomma genus stands out with a wide range of species (~136), of which 68 occur in the Neotropical Region ( Guglielmone et al, 2021 ; Soares et al, 2023 ). In Brazil, a total of 34 Amblyomma species have been reported, including two recently described species ( Amblyomma romarioi and Amblyomma monteiroae ) ( Martins et al, 2019 ; Dantas-Torres et al, 2019 ; Fuverki et al, 2021 ; Soares et al, 2023 ; Labruna et al, 2023 ).…”

Parasitism by Amblyomma humerale (Acari: Ixodidae) on Chelonoidis denticulatus (Testudines: Testudinidae) in the Atlantic Forest

“…Other reports have described parasitism of adult A. humerale on the toad Rhinella arenarum (Hensel, 1867) (previously Bufo arenarum -Anura, Bufonidae; Sinkoc & Brum, 1997) and, under laboratory conditions, on Trachemys scripta (Wied-Neuwied, 1839) (red-eared slider -Testudines, Emydidae; Martins et al, 2020). Immature stages of the parasite have already been found on caimans, lizards and snakes (Labruna et al, 2002a;Martins et al, 2020), wild mammals (Witter et al, 2016;Fuverki et al, 2021) and birds (Ogrzewalska et al, 2010;Souza et al, 2020). Although reports on the usual hosts of A. humerale in the different biomes in which it occurs have been produced, details of parasitism patterns exhibited by this species have been described only for the state of Rondônia, in the Amazon region (Labruna et al, 2002a), and in the central-western portion of Mato Grosso state, in the Cerrado-Amazonia transition (Morais et al, 2017).…”