---
title: "Pacific Foldingdoor Spider"
description: "Antrodiaetus pacificus — Insekten & Spinnen. Antrodiaetus pacificus is a species of mygalomorph spiders native to the Pacific Northwest."
canonical: https://animalchecklist.com/de/animal/pacific-foldingdoor-spider
last_updated: 2026-09-20
---

# Pacific Foldingdoor Spider

> Antrodiaetus pacificus — Insekten & Spinnen. Antrodiaetus pacificus is a species of mygalomorph spiders native to the Pacific Northwest.

- Scientific name: *Antrodiaetus pacificus*
- Category: `insects` (Insekten & Spinnen)
- Habitats: unknown
- iNaturalist observations: 1693
- Wikidata: [Q2857587](https://www.wikidata.org/wiki/Q2857587)
- iNaturalist taxon: [199276](https://www.inaturalist.org/taxa/199276)

## Names

- en: Pacific Foldingdoor Spider

## Countries with the most observations

US (678), CA (636)

## Summary

Antrodiaetus pacificus is a species of mygalomorph spiders native to the Pacific Northwest. Both male and female were first described by French arachnologist Eugène Louis Simon in 1884 under the name Brachybothrium pacificum. The genus name is a combination of the Greek "antrodiaitos" (αντροδιαιτος), meaning "living in caves", "antron" (αντρον), meaning "cave", and "diaita  (διαιτα), meaning "way of life, dwelling". The specific epithet refers to its geographical distribution along the pacific coast of North America, between San Francisco Bay and Alaska. It is the northernmost mygalomorph spider in North America.…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Antrodiaetus_pacificus

## Photo

![Pacific Foldingdoor Spider](https://animalchecklist.com/img/animals/pacific-foldingdoor-spider/medium.jpg)

Photo: Jon Eilers · CC0 · inaturalist — https://www.inaturalist.org/observations/180725522

## Machine access

`GET https://animalchecklist.com/api/v1/animals/pacific-foldingdoor-spider?lang=de` — see [openapi.json](https://animalchecklist.com/openapi.json).