Amblyomma geayi Neumann, 1899

Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, Zootaxa 4871 (1), pp. 1-322 : 95

45. Amblyomma geayi Neumann, 1899 .

A Neotropical species whose adults are usually found on Pilosa : Bradypodidae ; immature stages have been mostly collected from Bradypodidae and Passeriformes (several families).All parasitic stages have been found on Didelphimorphia : Didelphidae ; adults and nymphs have been recovered from Pilosa : Bradypodidae and Choloepodidae ; adults alone have been taken from Pilosa : Myrmecophagidae , Rodentia : Dasyproctidae and Erethizontidae, Crocodilia : Alligatoridae , Squamata : Colubridae and Iguanidae , and Testudines : Testudinidae ; immature stages have also been found on Chiroptera : Phyllostomidae , Pilosa : Cyclopedidae , Primates : Atelidae and Callitrichidae , Rodentia : Echimyidae , Columbiformes : Columbidae , Coraciiformes : Momotidae, Caprimulgiformes : Trochilidae , Piciformes : Ramphastidae , and Strigiformes : Strigidae (Guglielmone et al. 2014, Soares et al. 2015, Esser et al. 2016 a, b, Bermúdez et al. 2018, Gianizella et al. 2018 b, Lima et al. 2018). There are no records of Amblyomma geayi causing human parasitism.

M: Neumann (1899)

F: Neumann (1901)

N: Martins et al. (2013)

L: Amorim and Serra Freire (1999b); see note below

Redescriptions

M: Robinson (1926), Floch and Fauran (1958), Aragão and Fonseca (1961a), Onofrio et al. (2006b), Voltzit (2007), Labruna et al. (2009), Bermúdez et al. (2018), Dantas-Torres et al. (2019b)

F: Robinson (1926), Floch and Fauran (1958), Aragão and Fonseca (1961a), Onofrio et al. (2006b), Voltzit (2007), Labruna et al. (2009), Bermúdez et al. (2018), Dantas-Torres et al. (2019b)

N: none

L: none

Note: Amblyomma geayi , Amblyomma longirostre , Amblyomma parkeri and Amblyomma romarioi are morphologically similar species, and separation of adults and especially immature stages is difficult. Records of Amblyomma geayi from southern Brazil, most of them from Rodentia : Erethizontidae , have been redetermined as Amblyomma parkeri by Labruna et al. (2009); therefore, Erethizontidae are no longer considered usual hosts of Amblyomma geayi as previously proposed by Guglielmone et al. (2014). The description of the larva of Amblyomma geayi by Amorim and Serra-Freire (1999b) was based on material obtained in the Rio de Janeiro Zoo (southeastern Brazil), which raises uncertainty concerning the identification of this stage after the study of Labruna et al. (2009). Therefore, the Amorim and Serra-Freire (1999b) description is treated here as provisionally valid. Dolz et al. (2019) diagnosed as Amblyomma geayi larvae collected in Costa Rica that showed a 4% difference in sequences of 16S rDNA in comparison with Brazilian specimens of the same species. The diagnosis of Amblyomma geayi in Dolz et al. (2019) is treated as provisionally valid here.