The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/8337
Theridion differens Emerton, 1882
FAMILY: THERIDIIDAE Sundevall, 1833
Genus: Theridion Walckenaer, 1805
Species: Theridion differens Emerton, 1882
Common Names
Family Common Name:
cobweb weavers
Genus Common Name:
none
Species Common Name:
none
Distribution
Global Distribution: USA, Canada
Nearctic States & Provinces:
AB QC CO CT MT NJ OK PA SC WY
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:
(not yet recorded or unknown)
Life & Natural History:
(not yet recorded or unknown)
Seasonality of Specimen Records:
Image(s) of Habitus:

Credit: Dept. Biology, Samford University
Details About Males
Description:
(not yet recorded or unknown)
Image of External Male Genitalia:
(image not yet available)
Details About Females
Description:
(not yet recorded or unknown)
Image of Epigynum:
(image not yet available)
Synonyms and Chresonyms†
| Theridion differens Emerton 1882 |
| Theridion differens Keyserling 1884 |
| Theridion differens Emerton 1902 |
| Theridion differens Emerton 1909 |
| Theridion differens Comstock 1940 |
| Theridion spirale Muma 1943 |
| Theridion differens Kaston 1945 |
| Theridion differens Kaston 1948 |
| Allotheridion differens Archer 1950 |
| Theridion differens Levi 1957 |
| Theridion differens Shear 1967 |
| Theridion differens Paquin & Dupérré 2003 |
Taxonomic References†
Archer, A. F. 1950. A study of theridiid and mimetid spiders with descriptions of new genera and species. Mus. Pap. Ala Mus. nat. Hist. 30: 1-40.
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.
Emerton, J. H. 1902. The common spiders of the United States. Boston, pp. 1-225.
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.
Kaston, B. J. 1945. New Micryphantidae and Dictynidae with notes on other spiders. Am. Mus. Novit. 1292: 1-14.
Keyserling, E. 1884. Die Spinnen Amerikas II. Theridiidae. Nürnberg, 1: 1-222.
Levi, H. W. 1957. The spider genera Enoplognatha, Theridion, and Paidisca in America north of Mexico (Araneae, Theridiidae). Bull. Am. Mus. nat. Hist. 112: 1-124.
Muma, M. H. 1943. Common spiders of Maryland. Natural History Society of Maryland, Baltimore, 179 pp.
Paquin, P. & N. Dupérré. 2003. Guide d'identification des araignées de Québec. Fabreries, Suppl. 11 1-251.
Shear, W. A. 1967. Expanding the palpi of male spiders. Breviora 259: 1-27.
†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 Theridion Walckenaer, 1805‡‡
T. acutitarse Simon, 1900 ...............Hawaii
T. aeolium Levi, 1963 ...............USA
T. agrifoliae Levi, 1957 ...............USA, Canada
T. albidum Banks, 1895 ...............USA, Canada
T. arizonense Levi, 1957 ...............USA
T. australe Banks, 1899 ...............USA, Mexico, West Indies
T. betteni Wiehle, 1960 ...............Palearctic
T. californicum Banks, 1904 ...............USA, Canada
T. cameronense Levi, 1957 ...............USA, Mexico
T. campestratum Simon, 1900 ...............Hawaii
T. cheimatos Gertsch & Archer, 1942 ...............USA
T. cinctipes Banks, 1898 ...............USA, Mexico
T. cochise Levi, 1963 ...............USA
T. cowlesae Levi, 1957 ...............USA
T. cynicum Gertsch & Mulaik, 1936 ...............USA, Mexico
T. dilutum Levi, 1957 ...............USA, Mexico
T. dividuum Gertsch & Archer, 1942 ...............USA
T. dulcineum Gertsch & Archer, 1942 ...............USA
T. ellicottense Dobyns & Bond, 1996 ...............USA
T. familiare O. P.-Cambridge, 1871 ...............Palearctic
T. flavonotatum Becker, 1879 ...............USA, Cuba
T. frondeum Hentz, 1850 ...............USA, Bahama Is.
T. geminipunctum Chamberlin, 1924 ...............USA, Mexico
T. gertschi Levi, 1959 ...............USA, Mexico
T. glaucescens Becker, 1879 ...............USA, Canada
T. goodnightorum Levi, 1957 ...............USA, Mexico
T. grallator Simon, 1900 ...............Hawaii
T. haleakalense Simon, 1900 ...............Hawaii
T. hemerobium Simon, 1914 ...............USA, Canada, Europe
T. hidalgo Levi, 1957 ...............USA, Mexico
T. impressum L. Koch, 1881 ...............Holarctic
T. intritum (Bishop & Crosby, 1926) ...............USA
T. istokpoga Levi, 1957 ...............USA to Panama
T. kauaiense Simon, 1900 ...............Hawaii
T. kawea Levi, 1957 ...............USA, Mexico
T. lawrencei Gertsch & Archer, 1942 ...............USA
T. leechi Gertsch & Archer, 1942 ...............USA, Canada
T. leviorum Gertsch & Riechert, 1976 ...............USA
T. llano Levi, 1957 ...............USA
T. mauiense Simon, 1900 ...............Hawaii
T. melanostictum O. P.-Cambridge, 1876 ...............Mediterranean, Aldabra, China, Japan, USA, Hispaniola
T. melanurum Hahn, 1831 ...............Holarctic, Azores
T. melinum Simon, 1900 ...............Hawaii
T. michelbacheri Levi, 1957 ...............USA
T. montanum Emerton, 1882 ...............USA, Canada, Alaska, Norway, Finland, Russia
T. morulum O. P.-Cambridge, 1898 ...............USA, Mexico
T. murarium Emerton, 1882 ...............North America
T. myersi Levi, 1957 ...............USA, Mexico, Jamaica
T. mystaceum L. Koch, 1870 ...............Palearctic
T. neomexicanum Banks, 1901 ...............USA, Canada
T. neshamini Levi, 1957 ...............USA
T. nigrovariegatum Simon, 1873 ...............Palearctic
T. ohlerti (Thorell, 1870) ...............Holarctic
T. ohlerti lundbecki (Sorensen, 1898) ...............Greenland
T. orlando (Archer, 1950) ...............USA
T. pennsylvanicum Emerton, 1913 ...............USA, Canada
T. perkinsi Simon, 1900 ...............Hawaii
T. petraeum L. Koch, 1872 ...............Holarctic
T. pictipes Keyserling, 1884 ...............USA
T. pictum (Walckenaer, 1802) ...............Holarctic
T. pinastri L. Koch, 1872 ...............Palearctic
T. positivum Chamberlin, 1924 ...............USA, West Indies to Paraguay
T. posticatum Simon, 1900 ...............Hawaii
T. praetextum Simon, 1900 ...............Hawaii
T. praetextum concolor Simon, 1900 ...............Hawaii
T. punctipes Emerton, 1924 ...............USA, Mexico
T. rabuni Chamberlin & Ivie, 1944 ...............USA, Bahama Is.
T. saanichum Chamberlin & Ivie, 1947 ...............USA, Canada, Alaska
T. sardis Chamberlin & Ivie, 1944 ...............USA
T. sisyphium (Clerck, 1757) ...............Palearctic
T. submissum Gertsch & Davis, 1936 ...............USA, Mexico, Bahama Is., Jamaica
T. timpanogos Levi, 1957 ...............USA
T. transgressum Petrunkevitch, 1911 ...............USA, Mexico
T. varians Hahn, 1833 ...............Holarctic
T. yuma Levi, 1963 ...............USA
‡‡May also include species with Palearctic distribution