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Oonopidae Xyphinus

Xyphinus karschi Bösenberg & Strand, 1906

Karsch’s Porcupine Goblin Spider

Unlike the preceding species, X. karschi has no carapace spines or spikes, and looks superficially like a Gamasomorpha. In both sexes, the carapace has an intricately laced pattern. and more than 20 fine teeth along each of its lateral edges. The sternum is heart shaped. It is distinguished from other non-spiny Xyphinus by the genitalia.

Length♀ 2 mm; ♂ 2 mm
DistributionWidespread, including Singapore, Thailand, China, Japan.
HabitatLeaf litter, and bark of tree trunks, in parkland and secondary forests. Occasionally on walls in built-up areas.

Taxonomy

Type Deposits*

  1. Holotype

    Hunan Teachers' College, Changsha, China; ♀ of Pseudotriaeris echinatus (Yin & Wang, 1984a)

  2. Lectotype

    Senckenberg Museum, Frankfurt am Main (SMF), Germany; ♂ (2782) (Kranz-Baltensperger, 2014)

  3. Paratype

    Hunan Teachers' College, Changsha, China; 16♂ 15♀ of Pseudotriaeris echinatus (Yin & Wang, 1984a)

  4. Paralectotype

    Senckenberg Museum, Frankfurt am Main (SMF), Germany; 1♀ (28795/2781) (Kranz-Baltensperger, 2014)

  5. Allotype

    Hunan Teachers' College, Changsha, China; ♂ of Pseudotriaeris echinatus (Yin & Wang, 1984a)

Taxonomic references*

  1. Gamasomorpha karschi (Original description ♂♀)

    Dönitz & Strand, in Bösenberg & Strand, 1906 Japanische Spinnen: 117, pl. 16, f. 455

  2. Gamasomorpha karschi (♂)

    Uyemura, 1937a [How to discriminate between two related species (1)]: 61, unnumbered f. doi:10.2476/asjaa.2.55

  3. Pseudotriaeris karschi (♂♀, Transferred from Gamasomorpha)

    Brignoli, 1974h On some Oonopidae from Japan and Formosa (Araneae): 77, f. 7-11 doi:10.2476/asjaa.25.73

  4. Pseudotriaeris echinatus (Original description ♂♀)

    Yin & Wang, 1984a On some Oonopidae from southern China (Araneae): 55, f. 4A-K

  5. Pseudotriaeris karschi (♂♀, Synonym of Pseudotriaeris echinatus)

    Song, 1987 Spiders from agricultural regions of China (Arachnida: Araneae): 96, f. 60

  6. Pseudotriaeris karschi (♂♀)

    Chen & Zhang, 1991 Fauna of Zhejiang: Araneida: 61, f. 52.1-6

  7. Pseudotriaeris karschi (♂♀)

    Song, Zhu & Chen, 1999 The spiders of China: 72, f. 29G-H

  8. Pseudotriaeris karschi (♂♀)

    Ono, 2009a The spiders of Japan with keys to the families and genera and illustrations of the species: 103, f. 32-33

  9. Pseudotriaeris karschi (♂♀)

    Yin et al., 2012 Fauna Hunan: Araneae in Hunan, China: 185, f. 43a-k

  10. Xyphinus karschi (♂♀, Transferred from Pseudotriaeris)

    Kranz-Baltensperger, 2014 The goblin spider genus Xyphinus (Araneae; Oonopidae): 63, f. 53A-H, 54A-F, 55A-H, 56A-D doi:10.11646/zootaxa.3870.1.1

  11. Xyphinus karschi (♂♀)

    Suzuki, Hidaka & Tatsuta, 2023 Revision of goblin spiders (Araneae: Oonopidae) in the Nansei Islands, southwest Japan, with description of a new species: 223, f. 3A-I doi:10.11646/zootaxa.5323.2.3

  12. Xyphinus karschi (♀)

    Nojima, 2024 Spiders newly recorded from Okayama Prefecture, Japan: 37, f. 1

* Retrieved from the World Spider Catalog.

Distribution Map for Xyphinus karschi Bösenberg & Strand, 1906

Widespread, including Singapore, Thailand, China, Japan.

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