The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/7988
Robertus riparius (Keyserling, 1886)
FAMILY: THERIDIIDAE Sundevall, 1833
Genus: Robertus O. P.-Cambridge, 1879
Species: Robertus riparius (Keyserling, 1886)
Common Names
Family Common Name:
cobweb weavers
Genus Common Name:
none
Species Common Name:
none
Distribution
Global Distribution: USA, Canada, Alaska
Natural History, Phenology & Image(s)
Feeding Guild:‡
space web builders
Details About Males
Description:
(not yet recorded or unknown)
Details About Females
Description:
(not yet recorded or unknown)
Synonyms and Chresonyms† Taxonomic References†
Bishop, S. C. & C. R. Crosby. 1926. Notes on the spiders of the southeastern United States with descriptions of new species. Journ. Elisha Mitchell Sci. Soc. 41: 163-212. †Nomenclature and taxonomic references
from the World Spider Catalog accessible at http://research.amnh.org/entomology/spiders/catalog/THERIDIIDAE.html Other Nearctic Members of Genus Robertus O. P.-Cambridge, 1879‡‡
R. arcticus (Chamberlin & Ivie, 1947) ...............Alaska ‡‡May also include species with Palearctic distribution
‡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:
(not yet recorded or unknown)
Life & Natural History:
(not yet recorded or unknown)
Image(s) of Habitus:
(images not yet available)
Image of External Male Genitalia:
(image not yet available)
Image of Epigynum:
(image not yet available)
Pedanostethus riparius Keyserling 1886
Robertus riparius Keyserling 1886
Pedanostethus riparius Emerton 1909
Robertus riparius Bishop & Crosby 1926
Robertus riparius Comstock 1940
Ctenium riparius Kaston 1946
Ctenium riparius Kaston 1948
Robertus riparius Levi & Levi 1962
Ctenium riparius Kaston 1972
Robertus riparius Coddington 1990
Robertus riparius Paquin & Dupérré 2003
Coddington, J. A. 1990. Ontogeny and homology in the male palpus of orb-weaving spiders and their relatives, with comments on phylogeny (Araneoclada: Araneoidea, Deinopoidea). Smithson. Contrib. Zool. 496: 1-52.
Comstock, J. H. 1940. The spider book, revised and edited by W. J. Gertsch. Cornell Univ. Press, Ithaca, xi + 727 pp.
Emerton, J. H. 1909. Supplement to the New England Spiders. Trans. Connect. Acad. Arts Sci. 14: 171-236.
Kaston, B. J. 1972. How to know the spiders, second ed. Dubuque, pp. 1-289.
Kaston, B. J. 1948. Spiders of Connecticut. Bull. Conn. St. geol. nat. Hist. Surv. 70: 1-874.
Kaston, B. J. 1946. North American spiders of the genus Ctenium. Am. Mus. Novit. 1306: 1-19.
Keyserling, E. 1886. Die Spinnen Amerikas. Theridiidae. Nürnberg, 2: 1-295.
Levi, H. W. & L. R. Levi. 1962. The genera of the spider family Theridiidae. Bull. Mus. comp. Zool. Harv. 127: 1-71.
Paquin, P. & N. Dupérré. 2003. Guide d'identification des araignées de Québec. Fabreries, Suppl. 11 1-251.
R. arundineti (O. P.-Cambridge, 1871) ...............Palearctic
R. banksi (Kaston, 1946) ...............USA, Canada
R. borealis (Kaston, 1946) ...............USA, Canada
R. crosbyi (Kaston, 1946) ...............USA
R. eremophilus Chamberlin, 1928 ...............USA
R. floridensis (Kaston, 1946) ...............USA
R. frontatus (Banks, 1892) ...............USA, Canada
R. fuscus (Emerton, 1894) ...............USA, Canada
R. laticeps (Keyserling, 1884) ...............USA
R. lividus (Blackwall, 1836) ...............Holarctic
R. longipalpus (Kaston, 1946) ...............USA, Canada
R. lyrifer Holm, 1939 ...............Iceland, Scandinavia, Austria, Russia
R. neglectus (O. P.-Cambridge, 1871) ...............Palearctic
R. pumilus (Emerton, 1909) ...............USA
R. scoticus Jackson, 1914 ...............Palearctic
R. similis (Kaston, 1946) ...............USA
R. spinifer (Emerton, 1909) ...............USA
R. ungulatus Vogelsanger, 1944 ...............Palearctic
R. vigerens (Chamberlin & Ivie, 1933) ...............USA, Canada, Alaska