The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/7687
Euryopis argentea Emerton, 1882
FAMILY: THERIDIIDAE Sundevall, 1833
Genus: Euryopis Menge, 1868
Species: Euryopis argentea Emerton, 1882
Author of this page: Hancock, John (Page complete and awaiting review)
Common Names
Family Common Name:
cobweb weavers
Genus Common Name:
none
Species Common Name:
none
Distribution
Global Distribution: USA, Canada, Russia
Nearctic States & Provinces:
AB CO NH NJ
Collection Locales Mapped by Year Collected:
Natural History, Phenology & Image(s)
Feeding Guild:‡
space web builders
‡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:
Deciduous leaf litter, rocky grassland and its field layer (Hancock, pers. obs.).
Life & Natural History:
Believed to actively hunt rather an spin a web. A European species and is known to feed on ants (Levi, 1954).
Seasonality of Specimen Records:
Image(s) of Habitus:

Credit: Hancock, John
Details About Males
Description:
Carapace yellow, cephalic area a dusky black. Legs yellow. Abdomen black with a variable number of silvery spots. E. argentea has a pointed abdomen and an elevated carapace (Levi, 1954).
Male Dimensions:

A+B = 2.3 mm
A = 0.86 mm
C = 0.08 mm
Image of External Male Genitalia:

Credit: Hancock, John
Details About Females
Description:
Carapace yellow, cephalic area a dusky black. Legs yellow. Abdomen black with a variable number of silvery spots. E. argentea has a pointed abdomen and an elevated carapace (Levi, 1954).
Female Dimensions:

A+B = 3 mm
A = 0.83 mm
C = 0.86 mm
Image of Epigynum:
(image not yet available)
Descriptions Source:
Levi, H. W. 1954. Spiders of the genus Euryopis from North and Central America (Araneae, Theridiidae). Am. Mus. Novit. 1666: 1-48.
Synonyms and Chresonyms†
| Euryopis argentea Emerton 1882 |
| Euryopis argentea Keyserling 1886 |
| Euryopis argentata Banks 1908 |
| Euryopis strandi Sytshevskaja 1935 |
| Euryopis argentea Kaston 1948 |
| Euryopis argentea Levi 1954 |
| Euryopis argentea Paquin & Dupérré 2003 |
Taxonomic References†
Banks, N. 1908. New species of Theridiidae. Canad. Ent. 40: 205-208.
Emerton, J. H. 1882. New England spiders of the family Theridiidae. Trans. Conn. Acad. Arts Sci. 6: 1-86.
Kaston, B. J. 1948. Spiders of Connecticut. Bull. Conn. St. geol. nat. Hist. Surv. 70: 1-874.
Keyserling, E. 1886. Die Spinnen Amerikas. Theridiidae. Nürnberg, 2: 1-295.
Levi, H. W. 1954. Spiders of the genus Euryopis from North and Central America (Araneae, Theridiidae). Am. Mus. Novit. 1666: 1-48.
Paquin, P. & N. Dupérré. 2003. Guide d'identification des araignées de Québec. Fabreries, Suppl. 11 1-251.
Sytshevskaja, V. J. 1935. Étude sur les araignées de la Kamtchatka. Folia zool. hydrobiol. 8: 80-103.
†Nomenclature and taxonomic references from the World Spider Catalog accessible at http://research.amnh.org/entomology/spiders/catalog/THERIDIIDAE.html
Natural History References
Levi, H. W. 1954. Spiders of the genus Euryopis from North and Central America (Araneae, Theridiidae). Am. Mus. Novit. 1666: 1-48.
Other Nearctic Members of Genus Euryopis Menge, 1868‡‡
E. californica Banks, 1904 ...............USA, Mexico
E. coki Levi, 1954 ...............USA
E. flavomaculata (C. L. Koch, 1836) ...............Palearctic
E. formosa Banks, 1908 ...............USA, Canada
E. funebris (Hentz, 1850) ...............USA, Canada
E. gertschi Levi, 1951 ...............USA, Canada
E. lineatipes O. P.-Cambridge, 1893 ...............USA to Colombia
E. mulaiki Levi, 1954 ...............USA
E. pepini Levi, 1954 ...............USA
E. quinquemaculata Banks, 1900 ...............USA
E. saukea Levi, 1951 ...............Holarctic
E. scriptipes Banks, 1908 ...............North America
E. spinigera O. P.-Cambridge, 1895 ...............USA to Colombia
E. spiritus Levi, 1954 ...............USA
E. tavara Levi, 1954 ...............USA
E. texana Banks, 1908 ...............USA, Mexico
E. varis Levi, 1963 ...............USA
E. weesei Levi, 1963 ...............USA
‡‡May also include species with Palearctic distribution
Page Reference:
Hancock, John. submitted. Taxonomic and natural history description of FAM: THERIDIIDAE, Euryopis argentea Emerton, 1882.
In: The Nearctic Spider Database. David P. Shorthouse (editor). World Wide Web electronic publication. Direct link: http://www.canadianarachnology.org/data/spiders/7687 (Accessed: 10/7/2008 1:22:35 PM).
Author Email Address: spidermanjohn@shaw.ca
Text Last Modified: 2006-03-05T01:38:20Z