83. Amblyomma nodosum Neumann, 1899 .

Neotropical: 1) Argentina, 2) Belize, 3) Bolivia, 4) Brazil, 5) Colombia, 6) Costa Rica, 7) Guatemala, 8) Honduras, 9) Mexico (south), 10) Nicaragua, 11) Panama, 12) Paraguay, 13) Trinidad and Tobago, 14) Venezuela (Jones et al. 1972, Alvarez et al. 2005, Labruna et al. 2005 c, Debárbora et al. 2012, Novakova et al. 2015, Acevedo-Gutiérrez et al. 2020, Petters et al. 2020, Guglielmone et al. 2021).

Amblyomma nodosum and Amblyomma calcaratum have been confused with each other, as discussed in the entry for the latter name.

The record of Amblyomma nodosum from Belize is based on Garnham & Lewis (1959) and is treated as provisionally valid in Guglielmone et al. (2021) and here because the specimens were found on an unusual host for this tick.

Mazioli et al. (2012) listed Guyana as being within the geographic distribution of Amblyomma nodosum, but no records of this tick have been found from that country.