1. Robertsicus elaphensis (Price, 1959) .

Nearctic: 1) Mexico (north), 2) USA (Keirans & Degenhardt 1985, Kolonin 2009, Guzmán-Cornejo et al. 2011).

Earlier records of Robertsicus elaphensis were reported as Aponomma elaphense or elaphensis, and Amblyomma elaphense or elaphensis, but a new genus was erected for this species by Barker & Burger (2018).

Camicas et al. (1998) regarded this tick as present in the Nearctic and Neotropical Zoogeographic Regions, but no record from the Neotropics was found when compiling this analysis.