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Genus Callobius

Web burrow on redwood - Callobius spider - Callobius bennetti - male Callobius Callobius? - Callobius Callobius - Callobius pictus - male Coras - Callobius Spider - Callobius sand spider - Callobius
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Amaurobiidae (Hacklemesh Weavers)
Genus Callobius
Synonyms and other taxonomic changes
Explanation of Names
Derived from rhyming to connect with Amaurobius and Callioplus.(1)
Callobius angelus - USA; CA; Humbolt and Mendocino co., CA(2)
Callobius arizonicus - USA, Mexico; central and southeastern AZ, western NM and northern Mexico(2)
Callobius bennetti - USA, Canada; Newfoundland west to Manitoba, perhaps to Saskatchewan, southeast to TN, perhaps into northern GA and AL; MB, NB, NF, NS, ON, QB, CT, IL, IN, IA, ME, MD, MA, MI, MN, NH, NJ, NY, NC, OH, PA, TN, VT, VA, WV, WI(2)
Callobius canada - USA, Canada; lower BC, MT, WA, OR(2)
Callobius deces - USA; WA, OR, CA(2)
Callobius enus - USA, Canada; MT, ID, BC, WA, OR(2)
Callobius gertschi - USA; Northern Sierra Nevada, CA to Southern Cascade Range, CA(2)
Callobius guachama - USA; CA; San Bernadino co., CA
Callobius hyonasus - USA; OR(2)
Callobius kamelus - USA; northeastern OR in the Blue Mountain area; Baker, Grant, and Union co., OR(2)
Callobius klamath - USA; Klamath co., OR(2)
Callobius manzanita - USA; CA; Shasta and Siskiyou co., CA(2)
Callobius nevadensis - USA; UT west to CA, north to WA, ID and MT(2); CA, ID, MT, NV, OR, UT, WA(2)
Callobius nomeus - USA, Canada; New England north to Labrador, west to BC and AK south to OR, southeast to UT and NM, north to ID and MT; AL, BC, NL, QB, SK, YT, AK, CO, ID, MT, NH, OR, UT, WA, WY(2)
Callobius olympus - USA; CA; San Francisco Co., south to about Monterey Co.
Callobius panther - USA; CA; Mt. Shasta and vicinity in northern CA(2)
Callobius paskenta - USA; CA; Tehama co.(known only from type locality)(2)
Callobius pauculus - USA; known only from the type locality, Tehama co., CA(2)
Callobius paynei - USA; southwestern OR and northwestern CA(2)
Callobius pictus - USA, Canada; mainly Pacific Coast from AK to CA, with one record from ID; BC, AK, CA, ID, OR, WA(2)
Callobius rothi - USA; CA, WA; Marin and Sonoma counties, CA, and Olympia, WA(2)
Callobius severus - USA, Canada; AB, BC south to CA; AB, BC, CA, OR, WA(2)
Callobius sierra - USA; known only from Washoe co., NV(2)
Callobius tamarus -USA; central ID, northeast OR, and southeast WA(2)
Callobius tehama - USA; CA; Butte, Lassen, Shasta, and Tehama counties, CA(2)
In Callobius one really wants an in-focus ventral view of the metatarsus (next to last segment) of the first or second leg. Rod Crawford 7/10/12

According to the literature, the only member of the genus Callobius that can be found in Minnesota is C. bennetti.
Print References
A revision of the Nearctic Amaurobiidae (Arachnida: Araneidae)(2)
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.A revision of the Nearctic Amaurobiidae (Arachnida: Araneidae)
Robin Leech. 1972. Memoirs of the Entomological Society of Canada 84: 1-82.