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Genus Dipoena

spider - Dipoena Small spider - Dipoena - female Dipoena - Dipoena washougalia - male Dipoena nigra? - Dipoena nigra - male Dipoena malkini? - Dipoena malkini - male Dipoena - Dipoena nigra - female D. malkini female - Dipoena malkini - female Small Spider - Dipoena
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Theridiidae (Cobweb Spiders)
Genus Dipoena
Pronunciation
dip-EE-nuh
Explanation of Names
Author of name: Tamerlan Thorell. First year published: 1869.
Numbers
15 species in BugGuide's range (ref: World Spider Catalog 12.5)
Size
small spiders; body length of adults is 5mm or less
Range
The known range of this genus is much more broad than what Ubick et al.(1) says. The following ranges are taken from other published revisions and species checklists.

Species collected in Canada include: appalachia, buccalis, malkini, nigra, & washougalia.

The most widespread species appears to be D. nigra, found in southern Canada & the entire USA.

D. abdita: southern USA, all the way across to California (2)
D. appalachia: southeastern USA, with records as far north as Maryland & Quebec (3)(2)
D. bernardino: known only from the type locality in California (4)
D. buccalis: Atlantic coastal states, Gulf States, also collected in Ontario (3)(2)
D. cathedralis: known only from the type locality in Texas (2)
D. chathami: known only from the type locality in Georgia (2)
D. dorsata: collected in Maryland, Florida, & Arizona (4)
D. lana: Oregon & California (4)
D. malkini: southwestern USA & the Pacific Coast all the way north into British Columbia (3)(2)
D. neotoma: known only from the type locality in California (2)
D. nigra: southern Canada and all of the USA (4)(3)
D. provalis: known only from the type locality in Utah (2)
D. rita: known only from the type locality in Arizona (2)
D. sulfurica: New Mexico (2)
D. washougalia: Washington & British Columbia (3)(2)
Print References
(2)(4)
Works Cited
1.Spiders of North America: An Identification Manual
D. Ubick, P. Paquin, P.E. Cushing and V. Roth (eds). 2005. American Arachnological Society.
2.Spiders of the genus Dipoena from America north of Mexico (Araneae, Theridiidae)
H.W. Levi. 1953. American Museum Novitates, No. 1647, 1-39.
3.Checklist of the spiders (Araneae) of Canada and Alaska
Paquin, Buckle, Duperre, & Dondale. 2010. Zootaxa 2461: 1–170.
4.American spiders of the genera Audifia, Euryopis, and Dipoena (Araneae: Theridiidae)
H.W. Levi. 1963. Bulletin of the Museum of Comparative Zoology, 129 (2): 121-185.