Galapagos Species Database

The Galapagos Species Database shares the information about the species from our Natural History Collections.

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Withius piger (Simon, 1878)

Pseudoscorpión, Pseudoscorpion

The introduction of this species to Santa Cruz has probably taken place quite recently, since its presence is limited to the Charles Darwin Research Station, the tritonymph found on horse dung might have been transported by a horse. (Mannert, 2014).

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Arthropoda

Class
Arachnida

Order
Pseudoscorpiones

Family
Withiidae

Genus
Withius

Species
piger

Taxon category: Accepted

Origin: Introduced - established

Introduction

Year of first record: 1978

Mode of introduction: Accidental

Introduction Pathway: Contaminant

Subpathway: On habitat material (soil, vegetation)

Introduced status: Naturalized

Invasive status: No data

Distribution

Distribution: Santa Cruz

References

  • Baert, L. Mahnert, V. (2015) The distribution of the non‐araneae and non‐acari arachnids of Galápagos Belgian Journal of Entomology 28: 1‐76
  • Mahnert, V. (2014) Pseudoscorpions (Arachnida: Pseudoscorpiones) from the Galapagos Islands (Ecuador) Revue suisse de Zoologie, 121: 135‐210

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This page should be cited as follows:

"Galapagos Species Database, Withius piger", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=25243. Accessed 4 June 2026.