Abstract
Ixodes brevisetosus n. sp. from Papua New Guinea, Ixodes contrarius n. sp. from Costa Rica, Ixodes guglielmonei n. sp. from Argentina and Chile, Ixodes insulae n. sp. from Australia, Ixodes moralesi n. sp. from Guatemala and Panama, Ixodes rio n. sp. from Brazil, Ixodes robbinsi n. sp. from Canada and the United States and Ixodes tinamou n. sp. from Peru (Acari: Ixodidae) are described based on females, nymphs and larvae from various avian hosts (Charadriiformes: Charadriidae; Falconiformes: Falconidae; Galliformes: Cracidae, Odontophoridae, Phasianidae; Passeriformes: Acanthizidae, Cardinalidae, Emberizidae, Fringillidae, Furnariidae, Melanocharitidae, Orthonychidae, Paridae, Passeridae, Petroicidae, Thamnophilidae, Troglodytidae, Turdidae; Strigiformes: Strigidae; Tinamiformes: Tinamidae) and a rodent (Rodentia: Muridae). Females, nymphs and larvae of all new species are similar to those of Ixodes auritulus Neumann, 1904, but can be distinguished by the shape of the scutum and basis capituli, relative length of idiosomal setae, auriculae and internal projection on palpal segment I, degree of development of dorsoapical and mesodorsal spurs on palpal segment I, and measurements and proportions of various structures. Females, nymphs and larvae of I. auritulus s. str. are redescribed based on specimens from passerine birds (Furnariidae, Troglodytidae, Turdidae) in Chile. The subspecies I. auritulus zealandicus Dumbleton, 1961 is elevated to species status, Ixodes zealandicus Dumbleton, 1961. Based on our extensive survey and morphological analyses, we evaluate the actual species richness in the I. auritulus species group and discuss future directions in the systematics of this group of ticks.
References
Aragão, H.B. (1938) Nota sobre os ixodideos da Republica Argentina. Memorias do Instituto Oswaldo Cruz, 33, 319–327. https://doi.org/10.1590/S0074-02761938000200009
Arthur, D.R. (1960) A review of some ticks (Acarina: Ixodidae) of sea birds. Part II. The taxonomic problems associated with the Ixodes auritulus-percavatus group of species. Parasitology, 50, 199–226. https://doi.org/10.1017/S0031182000025294
Ault, C.N. (1943) Descriptión de nuevos ejemplares de Ixodes auritulus Neumann 1899, hallados en la República Argentina. Revista de Medicina Veterinaria, 25, 167–174.
Barros-Battesti, D.M., Arzua, M., Pichorim, M. & Keirans, J.E. (2003) Ixodes (Multidentatus) paranaensis n. sp. (Acari: Ixodidae) a parasite of Streptoprocne biscutata (Sclater, 1865) (Apodiformes: Apodidae) birds in Brazil. Memórias do Instituto Oswaldo Cruz, 98, 93–102. https://doi.org/10.1590/S0074-02762003000100013
Bermúdez, S., Apanaskevich, D.A. & Domínguez, L. (2018) Garrapatas Ixodidae de Panamá. Secretaría Nacional de Ciencia, Tecnología e Innovación, Panamá, 129 pp.
Camicas, J.L., Hervy, J.P., Adam, F. & Morel, P.C. (1998) Les tiques du monde. Nomenclature, stades décrits, hôtes, repartition (Acarida, Ixodida). Orstom, Paris, 233 pp.
Clifford, C.M., Sonenshine, D.E., Keirans, J.E. & Kohls, G.M. (1973) Systematics of the subfamily Ixodinae (Acarina: Ixodidae). 1. The subgenera of Ixodes. Annals of the Entomological Society of America, 66, 489–500. https://doi.org/10.1093/aesa/66.3.489
Cooley, R.A. & Kohls, G.M. (1945) The genus Ixodes in North America. National Institute of Health Bulletin, 184, 1–246.
Darroch, J.N. & Mosimann, J.E. (1985) Canonical and principal components of shape. Biometrika, 72 (2), 241–252. https://doi.org/10.1093/biomet/72.2.241
Dumbleton, L.J. (1953) The ticks (Ixodoidea) of the New Zealand subregion. Cape Expedition Series Bulletin, 14, 5–35.
Dumbleton, L.J. (1961) The ticks (Acarina: Ixodoidea) of sea birds in New Zealand waters. New Zealand Journal of Science, 4, 760–769.
Durden, L.A. & Keirans, J.E. (1996) Nymphs of the genus Ixodes (Acari: Ixodidae) of the United States: taxonomy, identification key, distribution, hosts, and medical/veterinary importance. Thomas Say Publication in Entomology Monographs 9. Entomological Society of America, Lanham, Maryland, 95 pp.
Furman, D.P. & Loomis, E.C. (1984) The ticks of California (Acari: Ixodida). Bulletin of California Insect Survey, 25, 1–239.
González-Acuña, D., Venzal, J.M., Keirans, J.E., Robbins, R.G., Ippi, S. & Guglielmone, A.A. (2005) New host and locality records for the Ixodes auritulus (Acari: Ixodidae) species group, with a review of host relationships and distribution in the Neotropical Zoogeographic Region. Experimental and Applied Acarology, 37, 147–156. https://doi.org/10.1007/s10493-005-8434-y
Gregson, J.D. (1956) The Ixodoidea of Canada. Canada Department Agriculture, Science Service, Entomological Division Publication 930. Canada Department Agriculture, Science Service, Entomological Division. Queen’s Printer, Ottawa, 92 pp.
Guglielmone, A.A., Robbins, R.G., Apanaskevich, D.A., Petney, T.N., Estrada-Peña, A. & Horak, I.G. (2014) The hard ticks of the world (Acari: Ixodida: Ixodidae). Springer, Dordrecht, Heidelberg, New York and London, 738 pp. https://doi.org/10.1007/978-94-007-7497-1
Guglielmone, A.A., Petney, T.N. & Robbins, R.G. (2020) Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019. Zootaxa, 4871 (1), 1–322. https://doi.org/10.11646/zootaxa.4871.1.1
Guglielmone, A.A., Nava, S. & Robbins, R.G. (2021) Neotropical hard ticks (Acari: Ixodida: Ixodidae). A critical analysis of their taxonomy, distribution, and host relationships. Springer, Cham, 486 pp. https://doi.org/10.1007/978-3-030-72353-8
Heath, A.C.G. & Palma, R. (2017) A new species of tick (Acari: Ixodidae) from seabirds in New Zealand and Australia, previously misidentified as Ixodes eudyptidis. Zootaxa, 4324 (2), 285–314. https://doi.org/10.11646/zootaxa.4324.2.4
Heath, A.C.G., Palma, R.L., Cane, R.P. & Hardwick, S. (2011) Checklist of New Zealand ticks (Acari: Ixodidae, Argasidae). Zootaxa, 2995 (1), 55–63. https://doi.org/10.11646/zootaxa.2995.1.4
ICZN (2012) International Commission on Zoological Nomenclature: Amendment of articles 8, 9, 10, 21 and 78 of the International Code of Zoological Nomenclature to expand and refine methods of publication. Bulletin of Zoological Nomenclature, 69, 161–169. https://doi.org/10.21805/bzn.v69i3.a8.161
Jungers, W.L., Falsetti, A.B. & Wall, C.E. (1995) Shape, relative size, and size-adjustments in morphometrics. Yearbook of Physical Anthropology, 38, 137–161. https://doi.org/10.1002/ajpa.1330380608
Keirans, J.E. & Clifford, C.M. (1978) The genus Ixodes in the United States: a scanning electron microscope study and key to adults. Journal of Medical Entomology, Supplement 2, 1–149. https://doi.org/10.1093/jmedent/15.suppl2.1
Kohls, G.M. & Clifford, C.M. (1966) Three new species of Ixodes from Mexico and description of the male of I. auritulus auritulus Neumann, I. conepati Cooley and Kohls, and I. lasallei Mendez and Ortiz (Acarina: Ixodidae). Journal of Parasitology, 52, 810–820. https://doi.org/10.2307/3276462
Lindquist, E.E., Galloway, T.D., Artsob, H., Lindsay, L.R., Drebot, M., Wood, H. & Robbins, R.G. (2016) A Handbook to the Ticks of Canada (Ixodida: Ixodidae, Argasidae). Biological Survey of Canada Monograph Series No. 7. Biological Survey of Canada, Ottawa, 317 pp. https://doi.org/10.3752/9780968932186
Nava, S., Venzal, J.M., González-Acuña, D., Martins, T.F. & Guglielmone, A.A. (2017) Ticks of the Southern Cone of America. Elsevier Academic Press, London, San Diego, Cambridge, Oxford, 348 pp.
Neumann, G. (1899) Revision de la famille des ixodidés. Mémoires de la Société Zoologique de France, 12, 107–294.
Neumann, L.G. (1904) Notes sur les ixodidés. II. Archives de Parasitologie, 8, 444–464.
Neumann, L.G. (1911) Ixodidae. Das Tierreich, 26, 1–169. https://doi.org/10.5962/bhl.title.22339
Nuttall, G.H.F. (1916) Notes on ticks. IV. Relating to the genus Ixodes and including a description of three new species and two new varieties. Parasitology, 8, 294–337. https://doi.org/10.1017/S0031182000010623
Nuttall, G.H.F. & Warburton, C. (1911) Ticks. A monograph of the Ixodoidea. Part II. The Ixodidae. Section II. Genus I. Ixodes Latreille 1795. Cambridge University Press, London, pp. 133–293. https://doi.org/10.5962/bhl.title.24075
Onofrio, V.C., Barros-Battesti, D.M., Labruna, M.B. & Faccini, J.L.H. (2009) Diagnoses of and illustrated key to the species of Ixodes Latreille, 1795 (Acari: Ixodidae) from Brazil. Systematic Parasitology, 72, 143–157. https://doi.org/10.1007/s11230-008-9169-z
R Development Core Team. (2005) R: A language and environment for statistical computing. http://cran.r-project.org (accessed 28 June 2022)
Roberts, F.H.S. (1964) The tick fauna of Tasmania. Records of the Queen Victoria Museum Launceston, New Series, 17, 1–8.
Roberts, F.H.S. (1970) Australian ticks. CSIRO, Melbourne, 267 pp.
Webb, J.P., Bennett, S.G. & Challet, G.L. (1990) The larval ticks of the genus Ixodes Latreille (Acari: Ixodidae) of California. Bulletin of the Society for Vector Ecology, 15, 73–124.
Wickham, H. (2011) ggplot2. Wiley Interdisciplinary Reviews-Computational Statistics, 3, 180–185. https://doi.org/10.1002/wics.147
Wilson, N. (1967) Mesostigmata: Rhinonyssidae, Halarachnidae (nasal mites); Metastigmata: Ixodidae (ticks). Antarctic Research Series, 10, 41–49. https://doi.org/10.1029/AR010p0041
Wilson, N. (1970) Acarina: Metastigmata: Ixodidae of South Georgia, Heard and Kerguelen. Pacific Insects Monograph, 23, 78–88.