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Bassaniana utahensis (Gertsch, 1932)

	FAMILY: THOMISIDAE Sundevall, 1833     Genus: Bassaniana Strand, 1928         Species: Bassaniana utahensis (Gertsch, 1932)
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General Comments: C. utahensis has a broader range than C. versicolor and the two are thought to produce infertile hybrids where they co-occur (e.g. southern Ontario and adjacent United States) (Dondale & Redner, 1978). The range of C. utahensis is Alaska to Labrador and Nova Scotia, southward to California, Mexico, and Florida.

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

Global Distribution: USA, Canada, Alaska
Nearctic States & Provinces: (from the Nearctic Spider Database)   AB ON AK CO MT SD UT
Collection Locales Mapped by Year Collected: (from the Nearctic Spider Database)

Specimen Search Specimen list 25, 64

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
Recorded Habitats: under bark scales of trees
Life & Natural History: (not yet recorded or unknown)

Seasonality of Specimen Records: (from the Nearctic Spider Database - Requires Flash plug-in - refresh this page if not visible)

Image(s) of Habitus:

Description: Carapace brown & mottled with dull yellow and off-white. Legs are brown and mottled with same colours. Dorsal surface of abdomen is spotted with brown, yellow, and white. These white areas sometimes form irregular, transverse bands (Dondale & Redner, 1978).

Male Dimensions: A = 3.8 mm  A+B = 4.65 mm  C = 3 mm

Image of External Male Genitalia: email an image

Description: Colour and patterning much the same as male, though female tends to be paler (Dondale & Redner, 1978).

Female Dimensions: A = 3.8 mm  A+B = 6.28 mm  C = 3.8 mm

Image of Epigynum: email an image

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.

Bassaniana utahensis Gertsch 1932 urn:lsid:ubio.org:namebank:9738028

Platyxysticus utahensis Gertsch 1932 urn:lsid:ubio.org:namebank:2102745

Coriarachne utahensis Gertsch 1939 urn:lsid:ubio.org:namebank:2102747

Coriarachne utahensis Gertsch 1953 urn:lsid:ubio.org:namebank:2102749

Coriarachne utahensis Schick 1965 urn:lsid:ubio.org:namebank:2102750

Coriarachne utahensis Bowling & Sauer 1975 urn:lsid:ubio.org:namebank:2102751

Coriarachne utahensis Dondale & Redner 1978 urn:lsid:ubio.org:namebank:2102752

Bassaniana utahensis Ono 1988 urn:lsid:ubio.org:namebank:9736311

Bassaniana utahensis Paquin & Dupérré 2003 urn:lsid:ubio.org:namebank:2009774

Bowling, T. A. & R. J. Sauer. 1975. A taxonomic revision of the crab spider genus Coriarachne (Araneida, Thomisidae) for North America north of Mexico. J. Arachnol. 2: 183-193.

Chickering, A. M. 1940. The Thomisidae (crab spiders) of Michigan. Pap. Michigan Acad. Sci. Arts Lett. 25: 189-237.

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. 1953. The spider genera Xysticus, Coriarachne and Oxyptila (Thomisidae, Misumeninae) in North America. Bull. Am. Mus. Nat. Hist. 102: 415-482.

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. 1932. A new generic name for Coriarachne versicolor Keyserling, with new species. Amer. Mus. Novit. 563: 1-7.

Ono, H. 1988. A revisional study of the spider family Thomisidae (Arachnida, Araneae) of Japan. National Science Museum, Tokyo, ii + 252 pp.

Paquin, P. & N. Dupérré. 2003. Guide d'identification des araignées de Québec. Fabreries, Suppl. 11 1-251.

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

^‡Nomenclature and taxonomic references from the World Spider Catalog

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.

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