Western deer tick
Ixodes pacificus Cooley & Kohls, 1943
Status not recordedarachnids
The western deer tick (Ixodes pacificus) is a species in the family Ixodidae, order Ixodida.
No freely licensed photo yet
Quick facts about the western deer tick
- Weight
- Not recorded
- Length
- Not recorded
- Lifespan
- Not recorded
- Main food
- Not recorded
- Habitat
- Not recorded
- Young per litter or clutch
- Not recorded
- Conservation status
- Not recorded
- Countries on record
- Not recorded
Where does the western deer tick live?
Not recorded
Is the western deer tick endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the western deer tick classified?
- kingdomAnimalia
- phylumArthropoda
- classArachnida
- orderIxodida
- familyIxodidae
- genusIxodes
- SpeciesIxodes pacificus Cooley & Kohls, 1943
Synonyms Ixodes pacificus
Other names and names in other languages (6)
- California black-eyed tickEnglish
- California black-legged tickEnglish
- Western black-legged tickEnglish
- Western blacklegged tickEnglish
- klíště tichomořskéCzech
- Garrapata de patas negras del PacíficoSpanish
Relatives of the western deer tick
Other species in the same genus Ixodes.

Deer tick
Ixodes ricinus

Taiga tick
Ixodes persulcatus

Deer tick
Ixodes scapularis
Hedgehog tick
Ixodes hexagonus
Seabird tick
Ixodes uriae
Dog tick
Ixodes canisuga
CompareWestern deer tick vs Deer tickWestern deer tick vs Taiga tickWestern deer tick vs Deer tickWestern deer tick vs Hedgehog tick
Common questions
Answered only where our data holds the answer.
What kind of animal is the western deer tick?
The western deer tick (Ixodes pacificus) belongs to the family Ixodidae in the order Ixodida.
Sources and how to cite this page
Data as of 2026-11-14. How this page is put together.
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Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Environment Agency freshwater fish surveys (National Fish Populations Database) · OGL v3.0 · 2026-11-14
Environment Agency. Freshwater fish surveys (NFPD). Contains public sector information licensed under the Open Government Licence v3.0. © Environment Agency copyright and/or database right. https://environment.data.gov.uk/ecology/explorer/ - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Global Biotic Interactions (GloBI): interpreted data products · CC0 1.0 · 0.11
Poelen, J.H., Simons, J.D. & Mungall, C.J. (2014) Global Biotic Interactions: an open infrastructure to share and analyze species-interaction datasets. Ecological Informatics 24: 148–159. https://doi.org/10.1016/j.ecoinf.2014.08.005. Data: https://doi.org/10.5281/zenodo.22691479, with each record's original reference. - Global Register of Introduced and Invasive Species (GRIIS) · CC BY 4.0 · 2026-11-13
Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data 5: 170202. https://doi.org/10.1038/sdata.2017.202. Country checklists published through GBIF by the IUCN SSC Invasive Species Specialist Group. - LepTraits 1.0: a globally comprehensive dataset of butterfly traits · CC0 1.0 · 1.0
Shirey, V., Larsen, E., Doherty, A. et al. (2022) LepTraits 1.0: a globally comprehensive dataset of butterfly traits. Scientific Data 9: 382. https://doi.org/10.1038/s41597-022-01473-5. Data: https://doi.org/10.6084/m9.figshare.19874602.v1 - Northwestern European arthropod life histories and ecological traits (raw datasets) · CC BY 4.0 · 2024-12-17
Logghe, G., Batsleer, F., Maes, D. et al. (2025) An in-depth dataset of northwestern European arthropod life histories and ecological traits. Biodiversity Data Journal 13: e146785. https://doi.org/10.3897/BDJ.13.e146785. Data: https://doi.org/10.5281/zenodo.13379714 - Palmer Archipelago penguin measurements (Palmer Station LTER) · CC0 1.0 · 0.1.0
Gorman, K.B., Williams, T.D. & Fraser, W.R. (2014) Ecological sexual dimorphism and environmental variability within a community of Antarctic penguins (genus Pygoscelis). PLoS ONE 9(3): e90081. https://doi.org/10.1371/journal.pone.0090081. Data: Palmer Station Antarctica LTER, via Horst, A.M., Hill, A.P. & Gorman, K.B. (2020) palmerpenguins. https://doi.org/10.5281/zenodo.3960218 - ReptTraits: a comprehensive dataset of ecological traits in reptiles · CC BY 4.0 · v1-2
Oskyrko, O., Mi, C., Meiri, S. et al. (2024) ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data 11: 243. https://doi.org/10.1038/s41597-024-03079-5. Data: https://doi.org/10.6084/m9.figshare.24572683.v4 - Sharkipedia: a curated open access database of shark and ray life history traits · CC BY 4.0 · 1.0-2022-06-17
Mull, C.G., Pacoureau, N., Pardo, S.A. et al. (2022) Sharkipedia: a curated open access database of shark and ray life history traits and abundance time-series. Scientific Data 9: 559. https://doi.org/10.1038/s41597-022-01655-1. Data: https://doi.org/10.5281/zenodo.6656525 - SquamBase 1.0 - a dataset of squamate species traits · CC0 1.0 · 1.0-dryad-v5
Meiri, S. (2024) SquamBase - a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography 33(4): e13812. https://doi.org/10.1111/geb.13812. Data: https://doi.org/10.5061/dryad.76hdr7t3b - TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe · CC BY 4.0 · 2.0
Chauvier, Y., Adde, A., Bergamini, A. et al. (2025) TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe. Zenodo. https://doi.org/10.5281/zenodo.15063844 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
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Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Western deer tick (Ixodes pacificus). Retrieved from https://creaturedata.com/animals/western-deer-tick
“Western deer tick (Ixodes pacificus).” CreatureData, 2026, https://creaturedata.com/animals/western-deer-tick.
@misc{western_deer_tick_2026,
title = {Western deer tick (Ixodes pacificus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/western-deer-tick},
note = {Data as of 2026-11-14}
}