Resources:
Thomisidae  Sundevall, 1833 / Xysticus  C. L. Koch, 1835   86 species

Xysticus emertoni  Keyserling, 1880

Description
Male

Palp: basal apophysis of tegulum slender throughout its length. Prosoma dark reddish-brown, flecked with white, pale median area enclosing large mottled area in front of dorsal groove. Opisthosoma dorsally with reddish-brown areas separated by light brownish median area and transverse lines. Legs mottled dark reddish-brown.

Prosoma length: 3.3-3.6 mm, prosoma width: 3.2-3.5 mm.

Body length male: 6.4 mm
Female

Colour as in male but paler. Epigyne: atrial ridge extensive.

Prosoma length: 3.7-4.0 mm, prosoma width: 3.5-3.8 mm.

Body length female: 7.8 mm
Distribution
  Presence
  No data
Global distribution (WSC 2024): Russia (Urals to Far East), Kazakhstan, Central Asia, China, Canada, USA
Figures
Distribution List

"No references" does not mean that the species does not occur in this country, but that we have not yet inserted the reference for it. We are working on it.

Russia, Eastern   (Mikhailov, 2013) ||| Slovakia  Removed (Gajdoš & Svatoň, 2007) ||| Sweden  Removed (Schenkel, 1931; Tullgren, 1944) |||
References

Gajdoš P, Svatoň J (2007) Supplementary records to catalogue of Slovakian spiders. Entomofauna Carpathica 19: 21-26 pdf

Mikhailov K G (2013) The spiders (Arachnida: Aranei) of Russia and adjacent countries: a non-annotated checklist. Arthropoda Selecta, Supplement 3: 1-262 pdf

Schenkel E (1931) Arachniden aus dem Sarekgebirge. In: Naturwissenschafliche Untersuchungen des Sarekgebirges in Schwedisch-Lappland. Band IV, Zoologie. Stockholm, pp. 949-980. pdf

Song D X, Zhu M S, Chen J (1999) The spiders of China. Hebei Science and Technology Publishing House, Shijiazhuang, 640 pp. pdf

Tullgren A (1944) Svensk spindelfauna. 3. Egentiliga spinddlar. Araneae Fam 1-4. Salticidae, Thomisidae, Philodromidae och Eusparassidae. Stockholm (Entomol Fören.): 138 pp. pdf

WSC (2024) World Spider Catalog. Version 25.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (22.01.2024) doi: 10.24436/2 pdf

Updates
21-10-2022 Distribution update Detail
16-10-2022 Distribution update Detail
16-10-2022 Distribution insert Detail
18-11-2015 Image insert