| 词条 | Antrodiaetus pacificus |
| 释义 |
| image = Antrodiaetus pacificus.jpg | image_caption = Antrodiaetus pacificus | image_width = 250px | regnum = Animalia | phylum = Arthropoda | classis = Arachnida | ordo = Araneae | subordo = Mygalomorphae | superfamilia = Atypoidea | familia = Antrodiaetidae | genus = Antrodiaetus | species = A. pacificus | binomial = Antrodiaetus pacificus | binomial_authority = (Simon, 1884) | synonyms = Brachybothrium pacificum Simon, 1884 }} Antrodiaetus pacificus is a species of antrodiaetid mygalomorph spider. It is native to the Pacific Northwest. Taxonomy and etymologyThis species was originally described by French arachnologist Eugène Simon in 1884 under the name Brachybothrium pacificum.[1] The specific epithet refers to its geographical distribution. DescriptionA. pacificus is dark brown to black. It has two or three sclerotized patches on the abdomen. Females are 13 mm long, while males are about 11 mm long. BiologyDistribution and habitatIt is found along the pacific coast of North America, between San Francisco Bay and Alaska. It is the northernmost North American mygalomorph. It lives in damp cool forested habitats with sandy substrates.[2] Life historyA. pacificus is active all year round, but mostly between late July and early September, with mating occurring between early June and late November. It can live for more than one year.[2][3]BehaviorA. pacificus lives in a burrow it builds in sand, moss and decaying wood. It overwinters and broods its eggs inside the tubular structure. The burrow in closed during the day, and open at night, when the spider stands in the entrance, waiting for potential preys to walk nearby. It mainly preys on ants and beetles.[2]References1. ^Simon, E. 1884. Note sur le groupe des Mecicobothria. Bulletin de la Société Zoologique de France 9: 313-317. 2. ^1 2 Coyle, F. A. 1971. [https://www.biodiversitylibrary.org/part/21061#/summary Systematics and natural history of the mygalomorph spider genus Antrodiaetus and related genera (Araneae: Antrodiaetidae)]. Bulletin of the Museum of Comparative Zoology at Harvard College 141: 269-402. 3. ^Cokendolpher, J. C., Peck, R. W. & Niwa, C. G. (2005). [https://biotaxa.org/Zootaxa/article/view/zootaxa.1058.1.1 Mygalomorph spiders from southwestern Oregon, USA, with descriptions of four new species]. Zootaxa 1058: 1-34. External links{{Wikispecies|Antrodiaetus pacificus}}{{commonscat|Antrodiaetus pacificus}}{{Taxonbar|from=Q2857587}}{{Mygalomorphae-stub}} 3 : Mygalomorphae|Spiders of North America|Spiders described in 1884 |
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