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Species Theridion michelbacheri

T. michelbacheri male - Theridion michelbacheri - male T. michelbacheri male - Theridion michelbacheri - male T. michelbacheri male - Theridion michelbacheri - male T. michelbacheri male - Theridion michelbacheri - male Another T. michelbacheri male - Theridion michelbacheri - male T. michelbacheri female - Theridion michelbacheri - female T. michelbacheri female - Theridion michelbacheri - female T. michelbacheri female - Theridion michelbacheri - female
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 Theridion
Species michelbacheri (Theridion michelbacheri)
Size
Female: Length 2.2 mm(1)
Male: Length 1.8-2.5 mm(1)
Identification
Male palpus "curiously modified, with cymbium wrapped around bulb; cymbium black (1)".

"This species can be readily distinguished from all other members of the genus by the peculiar palpus and the epigynum (1)".
Range
Western United States, specimens known from California, Oregon, Washington and Montana.
Works Cited
1.The spider genera Enoplognatha, Theridion, and Paidisca in America north of Mexico (Araneae, Theridiidae)
H.W. Levi. 1957. Bulletin of the American Museum of Natural History 112, article 1, 123 p.