Thanatus formicinus (Clerck, 1757)
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FAMILY: PHILODROMIDAE Thorell, 1870 Genus: Thanatus C. L. Koch, 1837 Species: Thanatus formicinus (Clerck, 1757)  |
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Author: Shorthouse, David P.  Page views: 982 Write a Review:  Visitor Comments:  (3)
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General Comments: The known range of this species is Alaska to Nova Scotia, southward to California, Texas, and Virginia. It has also been collected in Europe, Asia, and North Africa (Dondale and Redner, 1978).
Common Names
Family Common Name:
running crab spiders
Genus Common Name:
none
Species Common Name:
none
Distribution
Global Distribution: Holarctic
Nearctic States & Provinces: (from the Nearctic Spider Database) 
AB ON CO MT NH PA WY
Collection Locales Mapped by Year Collected: (from the Nearctic Spider Database)
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Specimen Search
Specimen list |
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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. PDF
Recorded Habitats: pine, fir, aspen forests, under stones, in grasses, low shrubs, meadows, orchards
Life & Natural History: Specimens have been collected up to 2920 m in altitude (Dondale and Redner, 1978).
Seasonality of Specimen Records: (from the Nearctic Spider Database - Requires Flash plug-in - refresh this page if not visible)
Image(s) of Habitus:
Details About Males
Description: Carapace spotted and streaked with red brown on a yellow background. Pale V-shaped marking anterior to dorsal groove. Indistinct dark longitudinal bands in lateral areas. Legs brown or red brown. Abdomen brown yellow, distinct heart mark, paired toothed marks (Dondale and Redner, 1978).
Male Dimensions:
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Image of External Male Genitalia: email an image |
Details About Females
Description: Carapace spotted and streaked with red brown on a yellow background. Pale V-shaped marking anterior to dorsal groove. Indistinct dark longitudinal bands in lateral areas. Legs brown or red brown. Abdomen brown yellow, distinct heart mark, paired toothed marks (Dondale and Redner, 1978).
Female Dimensions:
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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.
Synonyms and Chresonyms‡
Taxonomic References‡
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Clerck, C. 1757. Svenska spindlar, uti sina hufvud-slågter indelte samt under några och sextio särskildte arter beskrefne och med illuminerade figurer uplyste. Stockholmiae, 154 pp.
Comstock, J. H. 1912. The spider book; a manual for the study of the spiders and their near relatives, the scorpions, pseudoscorpions, whipscorpions, harvestmen and other members of the class Arachnida, found in America north of Mexico, with analytical keys for their classification and popular accounts of their habits. Garden City, New York, pp. 1-721
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.
Dondale, C. D., A. L. Turnbull & J. H. Redner. 1964. Revision of the Nearctic species of Thanatus C. L. Koch (Araneae: Thomisidae). Can. Ent. 96: 636-656.
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Lyakhov, O. V. 2000. Contribution to the Middle Asian fauna of the spider genus Thanatus C. L. Koch, 1837 (Aranei: Philodromidae). Arthropoda Selecta 8: 221-230.
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‡Nomenclature and taxonomic references from the World Spider Catalog
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.
Latest Literature from uBio: 
Page Reference
Shorthouse, David P. submitted. Taxonomic and natural history description of FAM: PHILODROMIDAE, Thanatus formicinus (Clerck, 1757). In: The Nearctic Spider Database. David P. Shorthouse (editor). World Wide Web electronic publication. Direct link: http://www.canadianarachnology.org/data/spiders/30012 (Accessed: 5/13/2008 10:14:21 AM).
Text Last Modified: 2006-03-06T05:14:28Z
