Ixodes spinosus 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 : 68-69

218. Ixodes spinosus Neumann, 1899 .

A Neotropical species whose females are usually found on Rodentia : Dasyproctidae , and the only records of larvae and nymphs are from specimens collected from the same host. There are no reports of Ixodes spinosus causing human parasitism.

M: unknown

F: Neumann (1899)

N: Neumann (1899)

L: Neumann (1899)

Redescriptions

F: Nuttall and Warburton (1911), Onofrio et al. (2006 a, 2009), all under the name Ixodes fuscipes, Labruna et al. (2020) ; see note below

N: Nuttall and Warburton (1911), under the name Ixodes fuscipes ; see note below

L: Nuttall and Warburton (1911), Sénevet and Ripert (1967), both under the name Ixodes fuscipes ; see note below Note: the female, nymph and larva of Ixodes spinosus were described without accompanying figures by Neumann (1899) , but reduced to the synonymy of Ixodes fuscipes in Neumann (1901). This opinion was supported by Nuttall and Warburton (1911), who redescribed and figured the female of Ixodes fuscipes based on a female from the syntype series of Ixodes spinosus , and translated the brief original descriptions of the larva and nymph of Ixodes spinosus under the name Ixodes fuscipes . Cooley and Kohls (1945) treated Ixodes fuscipes as a doubtful species but this view was not supported by other tick workers, and the definition of Ixodes fuscipes in Nuttall and Warburton (1911) was applied to sustain the diagnosis of several records of this species. This situation changed when Labruna et al. (2020) morphologically compared the holotype female of Ixodes fuscipes with the female of the syntype series of Ixodes spinosus used by Nuttall and Warburton (1911) to redescribe Ixodes fuscipes . Using reliable morphological characters, Labruna et al. (2020) demonstrated that Ixodes fuscipes and Ixodes spinosus are both valid species.