21. Amblyomma calcaratum Neumann, 1899 .

A Neotropical species whose adults are usually found on Pilosa: Myrmecophagidae; larvae and nymphs are frequently collected from Passeriformes (several families). Adults alone have been recovered from Mammalia (several orders); immature stages have also been recovered from Perissodactyla: Tapiridae, Pilosa: Myrmecophagidae, Caprimulgiformes: Apodidae and Trochilidae, and Strigiformes: Strigidae (Guglielmone et al. 2014, Luz et al. 2017a, b). Amblyomma calcaratum is a very rare parasite of humans.

M: Neumann (1899)

F: Neumann (1899)

N: Martins et al. (2010)

L: Barbieri et al. (2013)

Redescriptions

M: Robinson (1926), Floch and Abonnenc (1941), Floch and Fauran (1958), Aragão and Fonseca (1961a), Boero and Delpietro (1971), Onofrio et al. (2006b), Voltzit (2007), Guzmán-Cornejo et al. (2011), Nava et al. (2017), Bermúdez et al. (2018), Dantas-Torres et al. (2019b); see note below

F: Robinson (1926), Floch and Abonnenc (1942), Floch and Fauran (1958), Aragão and Fonseca (1961a), Boero and Delpietro (1971), Onofrio et al. (2006b), Voltzit (2007), Guzmán-Cornejo et al. (2011), Nava et al. (2017), Bermúdez et al. (2018), Dantas-Torres et al. (2019b); see note below

N: Martins et al. (2014), Nava et al. (2017)

L: none

Note: Amblyomma calcaratum and Amblyomma nodosum are morphologically similar species, and Fairchild et al. (1966) warn about confusing the two. Voltzit (2007) describes the scutum of the female of Amblyomma calcaratum as inornate, but other authors describe it as ornate and provide examples of variations in the pattern of scutal ornamentation in both males and females. Jones et al. (1972) and Voltzit (2007) state that the scutum of the female of Amblyomma calcaratum is wider than long, while Robinson (1926), Boero and Delpietro (1971), Nava et al. (2017) and Bermúdez et al. (2018) found that the female scutum is longer than wide, raising additional uncertainties concerning the identification of this species.