Aliatypus californicus

(Banks, 1896)

California folding-door spider, California folding trapdoor spider

Aliatypus californicus is a of folding-door spider in the Antrodiaetidae. It is found in the United States, specifically in California. The species constructs burrows with a hinged, folding trapdoor made of silk and soil debris. It is one of several species in the Aliatypus studied for its burrow architecture and mygalomorph spider .

Aliatypus californicus trapdoor opened (Marshal Hedin) by Marshal Hedin. Used under a CC BY-SA 2.5 license.Aliatypus californicus 116033095 by Ken-ichi Ueda. Used under a CC BY 4.0 license.Aliatypus californicus 116033097 by Ken-ichi Ueda. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Aliatypus californicus: /ˌæliˈætipəs ˌkælɪˈfɔrnɪkəs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Aliatypus californicus can be distinguished from other mygalomorph spiders by its burrow structure: a silk-hinged, folding trapdoor that opens flat against the ground rather than being lifted vertically. The spider itself has the robust build typical of Antrodiaetidae, with stout legs and a stocky . -level identification requires examination of genitalia and other morphological features.

Images

Habitat

Found in mesic including coastal and montane areas of California. Constructs burrows in soil, often in areas with sufficient moisture to maintain burrow integrity.

Distribution

United States: California.

Behavior

Constructs and maintains a burrow with a hinged trapdoor made of silk and soil. The door lies flat and is pulled open from below by the spider. Remains in burrow for most of its life, emerging primarily to capture prey that walks near the burrow entrance.

Ecological Role

; likely contributes to soil aeration and nutrient cycling through burrowing activity.

Human Relevance

Featured on educational materials including a glow-in-the-dark T-shirt designed by Francisco Basso and Fran Keller for the Bohart Museum of Entomology. Studied by arachnologists including Jason Bond at UC Davis for and burrow evolution.

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