Linyphiidae  Blackwall, 1859 / Diastanillus  Simon, 1926   1 species

Diastanillus pecuarius  (Simon, 1884)


Prosoma brownish. Sternum brownish, with grey reticulate pattern and margin. Chelicerae brownish. Legs yellowish. Opisthosoma whitish, sometimes suffused with grey.

Body length male: 1.5 mm
Body length female: 1.5-1.8 mm
Additional information

myrmecophilic in formicaries of Formica fusca and related species. Pyrenees, 1800-2600 m, further locations in Austria in the range of timberline and small bush heathland (2000-2300 m)

Quite widespread in nests of Formica sp. ants at about 700-800 m.a.s.l. in central parts of South Norway, but goes down to sea level in coastal localities in Nordland county, Northern Norway.

Frequency: Widely distributed

Character states from linyphiid key
  No data
Global distribution (WSC 2021): France, Austria, Norway
Distribution List
Austria   (no references) ||| France   (no references) ||| Norway   (Aakra et al., 2016) |||

Aakra K, Morka G H, Antonson A, Farlund M, Wrånes R E, Frølandshagen R, Løvbrekke H, Furuseth P, Fjellberg A, Lemke M, Pfliegler W P, Andersen S, Olsen K M, Aadland B, Berggren K (2016) Spiders new to Norway (Arachnida, Araneae) with ecological, taxonomical and faunistic comments. Norwegian Journal of Entomology 63: 6-43 pdf

Fjellberg A (unpubl.)

Løvbrekke H (unpubl.)

Thaler K (1969) Über einige wenig bekannte Zwergspinnen aus Tirol (Arachn., Araneae, Erigonidae). Berichte des Naturwissenschaftlich-Medizinischen Vereins in Innsbruck 57: 195-219 pdf

WSC (2021) World Spider Catalog. Version 22.5. Natural History Museum Bern, online at (22.09.2021) doi: 10.24436/2 pdf

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