Nearctic States & Provinces: AB ON AK CA CO MT SD UT
Collection Locales Mapped by Year Collected:
The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/30168
Bassaniana utahensis (Gertsch, 1932)
FAMILY: THOMISIDAE Sundevall, 1833
Genus: Bassaniana Strand, 1928
Species: Bassaniana utahensis (Gertsch, 1932)
Author of this page: Shorthouse, David P. (Page complete and awaiting review)
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.
Common Names
Family Common Name:
crab spiders
Genus Common Name:
bark crab spiders
Species Common Name:
none
Distribution
Global Distribution: USA, Canada, Alaska
Nearctic States & Provinces:
AB ON AK CA CO MT SD UT
Collection Locales Mapped by Year Collected:
Natural History, Phenology & Image(s)
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.
Recorded Habitats:
under bark scales of trees
Life & Natural History:
(not yet recorded or unknown)
Seasonality of Specimen Records:
Image(s) of Habitus:
Credit: Buckle, Don
Details About Males
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+B = 4.65 mm
A = 3.8 mm
C = 3 mm
Image of External Male Genitalia:
(image not yet available)
Details About Females
Description:
Colour and patterning much the same as male, though female tends to be paler (Dondale & Redner, 1978).
Female Dimensions:
A+B = 6.28 mm
A = 3.8 mm
C = 3.8 mm
Image of Epigynum:
(image not yet available)
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.
Synonyms and Chresonyms†
| Bassaniana utahensis Gertsch 1932 |
| Platyxysticus utahensis Gertsch 1932 |
| Coriarachne utahensis Gertsch 1939 |
| Coriarachne utahensis Gertsch 1953 |
| Coriarachne utahensis Schick 1965 |
| Coriarachne utahensis Bowling & Sauer 1975 |
| Coriarachne utahensis Dondale & Redner 1978 |
| Bassaniana utahensis Ono 1988 |
| Bassaniana utahensis Paquin & Dupérré 2003 |
Taxonomic References†
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 accessible at http://research.amnh.org/entomology/spiders/catalog/THOMISIDAE.html
Natural History References
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.
Other Nearctic Members of Genus Bassaniana Strand, 1928‡‡
B. floridana (Banks, 1896) ...............USA
B. versicolor (Keyserling, 1880) ...............North America
‡‡May also include species with Palearctic distribution
Page Reference:
Shorthouse, David P. submitted. Taxonomic and natural history description of FAM: THOMISIDAE, Bassaniana utahensis (Gertsch, 1932).
In: The Nearctic Spider Database. David P. Shorthouse (editor). World Wide Web electronic publication. Direct link: http://www.canadianarachnology.org/data/spiders/30168 (Accessed: 10/13/2008 5:06:16 AM).
Author Email Address: dshorthouse@eol.org
Text Last Modified: 2006-03-07T23:57:54Z