// Workers AI · dad joke modeWhat did Antrodiaetus say? I'm in a hole lot of trouble.

Antrodiaetus
Female A. unicolor
Male A. pacificus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Mygalomorphae
Family:	Antrodiaetidae
Genus:	Antrodiaetus Ausserer, 1871
Type species
A. unicolor (Hentz, 1842)
Species
18, See text.
Synonyms
Acattyma Brachybothrium

Antrodiaetus is a genus of American and Japanese folding trapdoor spiders first described by Anton Ausserer in 1871. The 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".

Species

As of January 2026, this genus includes eighteen species:

• Antrodiaetus apachecus Coyle, 1971 – United States
• Antrodiaetus ashlandensis Cokendolpher, Peck & Niwa, 2005 – United States
• Antrodiaetus cerberus Coyle, 1971 – United States
• Antrodiaetus coylei Cokendolpher, Peck & Niwa, 2005 – United States
• Antrodiaetus effeminatus Cokendolpher, Peck & Niwa, 2005 – United States
• Antrodiaetus hageni (Chamberlin, 1917) – Canada, United States
• Antrodiaetus lincolnianus (Worley, 1928) – United States
• Antrodiaetus metapacificus Cokendolpher, Peck & Niwa, 2005 – United States
• Antrodiaetus microunicolor Hendrixson & Bond, 2005 – United States
• Antrodiaetus montanus (Chamberlin & Ivie, 1935) – United States
• Antrodiaetus occultus Coyle, 1971 – United States
• Antrodiaetus pacificus (Simon, 1885) – Canada, United States
• Antrodiaetus pugnax (Chamberlin, 1917) – Canada, United States
• Antrodiaetus robustus (Simon, 1891) – United States
• Antrodiaetus roretzi (L. Koch, 1878) – Japan
• Antrodiaetus stygius Coyle, 1971 – United States
• Antrodiaetus unicolor (Hentz, 1842) – United States
• Antrodiaetus yesoensis (Uyemura, 1942) – Japan

External links

• Citizen science observations for Antrodiaetus at iNaturalist