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Xysticus cunctator Thorell, 1877

	FAMILY: THOMISIDAE Sundevall, 1833     Genus: Xysticus C. L. Koch, 1835         Species: Xysticus cunctator Thorell, 1877
	Author: Hancock, John Page views: 1,362 Write a Review: Visitor Comments: (0)

General Comments: This species has been collected in Arizona, northward to southern British Columbia, Alberta, and Saskatchewan

Family Common Name:  crab spiders
Genus Common Name:  ground crab spiders
Species Common Name:  none

Global Distribution: USA, Canada
Nearctic States & Provinces: AB YT CO MT WA WY

Seasonality Specimen Search Specimen list 40, 43

Feeding Guild:^† ambushers
^†Feeding guild when noted defined by Uetz, G. W., J. Halaj, and A. B. Cady. 1999. Guild structure of spiders in major crops. Journal of Arachnology 27:270-280. PDF
Habitat (published): Specimens have been collected under logs in urban/rural settings. For example, a male was collected from his spun retreat alongside a subadult female and her retreat under a split log. This was in a town dwelling in a woodshed (Hancock, pers. obs.).
Habitat (<30 randomly chosen specimens): Garden;

Life & Natural History: (not yet recorded or unknown)

Image(s) of Habitus:

Description: Carapace a light red brown mottled brown and off-white, with a pale median area which has a small dark triangle anterior to dorsal grove. Legs mottled brown and off-white. Dorsum of abdomen with paired brown areas separated by off-white median band and transverse lines. Note the hooked apical sclerite on the embolus. (Dondale & Redner, 1978).

Male Dimensions: A = 2.22 mm  A+B = 4.5 mm  C = 2.15 mm

Image of External Male Genitalia: Credit: Hancock, John

Description: Similar to male but much paler (Dondale & Redner, 1978)

Female Dimensions: A = 2.61 mm  A+B = 6 mm  C = 2.56 mm

Image of Epigynum: Credit: Slowik, Joey

Descriptions Source:
Dondale, C. D. & J. H. Redner. 1978. The insects and arachnids of Canada, Part 5. The crab spiders of Canada and Alaska, Araneae: Philodromidae and Thomisidae. Research Branch, Agriculture Canada, Publ. 1663: 1-255.

Xysticus cunctator Thorell 1877 urn:lsid:ubio.org:namebank:1990064

Xysticus lenis Keyserling 1880 urn:lsid:ubio.org:namebank:1990065

Xysticus quinquepunctatus Keyserling 1880 urn:lsid:ubio.org:namebank:1990067

Xysticus cunctator nigrescens Cockerell 1890 urn:lsid:ubio.org:namebank:1990068

Xysticus cunctator pallidus Cockerell 1890 urn:lsid:ubio.org:namebank:1990069

Xysticus nervosus Chamberlin & Gertsch 1928 urn:lsid:ubio.org:namebank:1990070

Xysticus ancistrophor Chamberlin & Gertsch 1929 urn:lsid:ubio.org:namebank:1990071

Xysticus cunctator Gertsch 1939 urn:lsid:ubio.org:namebank:1990074

Xysticus nervosus Comstock 1940 urn:lsid:ubio.org:namebank:1990075

Xysticus cunctator Schick 1965 urn:lsid:ubio.org:namebank:9736392

Xysticus cunctator Turnbull, Dondale & Redner 1965 urn:lsid:ubio.org:namebank:1990077

Xysticus cunctator Dondale & Redner 1978 urn:lsid:ubio.org:namebank:1990078

Chamberlin, R. V. & W. J. Gertsch. 1929. New spiders from Utah and California. Jour. Ent. Zool. Claremont 21: 101-112.

Chamberlin, R. V. & W. J. Gertsch. 1928. Notes on spiders from southeastern Utah. Proc. biol. Soc. Wash. 41: 175-188.

Cockerell, T. D. A. 1890. Xysticus v. Pterostichus. Ent. Monthly Mag. 26: 191.

Comstock, J. H. 1940. The spider book, revised and edited by W. J. Gertsch. Cornell Univ. Press, Ithaca, xi + 727 pp.

Dondale, C. D. & J. H. Redner. 1978. The insects and arachnids of Canada, Part 5. The crab spiders of Canada and Alaska, Araneae: Philodromidae and Thomisidae. Research Branch, Agriculture Canada, Publ. 1663: 1-255.

Gertsch, W. J. 1939. A revision of the typical crab spiders (Misumeninae) of America north of Mexico. Bull. Amer. Mus. Nat. Hist. 76: 277-442.

Gertsch, W. J. 1934. Notes on American crab spiders (Thomisidae). Amer. Mus. Novit. 707: 1-25.

Keyserling, E. 1880. Die Spinnen Amerikas, I. Laterigradae. Nürnberg, 1: 1-283.

Schick, R. X. 1965. The crab spiders of California (Araneae, Thomisidae). Bull. Am. Mus. nat. Hist. 129: 1-180.

Thorell, T. 1877. Descriptions of the Araneae collected in Colorado in 1875, by A. S. Packard jun., M.D. Bull. U. S. geol. Surv. 3: 477-529.

Turnbull, A. L., C. D. Dondale & J. H. Redner. 1965. The spider genus Xysticus C. L. Koch (Araneae: Thomisidae) in Canada. Can. Ent. 97: 1233-1280.

^‡Nomenclature and taxonomic references from the World Spider Catalog

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