Rhipicephalus annulatus (Say, 1821)

Petney, Trevor N., Boulanger, Nathalie, Saijuntha, Weerachai, Chitimia-Dobler, Lidia, Pfeffer, Martin, Eamudomkarn, Chatanun, Andrews, Ross H., Ahamad, Mariana, Putthasorn, Noppadon, Muders, Senta V., Petney, David A. & Robbins, Richard G., 2019, Ticks (Argasidae, Ixodidae) and tick-borne diseases of continental Southeast Asia, Zootaxa 4558 (1), pp. 1-89 : 34

Rhipicephalus annulatus (Say, 1821)

This species is included as a parasite of cattle from northern Vietnam in Chien et al. (2016); however, it does not occur in surrounding countries ( Chen et al. 2010; Lao PDR-Vongphayloth et al. 2016). The nearest populations are possibly those in southern India although these require confirmation ( Ghosh et al. 2007). This should be investigated in more detail, as R. microplus found in Southeast Asia ( Petney and Keirans 1996a) may represent a species group with new species awaiting identification ( Burger et al. 2014). Alternatively, R. annulatus may have been introduced on cattle sometime in the past.