Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Genus Callobius

brown spider from my kitchen - Callobius bennetti - male Callobius bennetti? - Callobius bennetti - male Callobius? - Callobius pictus - female Callobius sp. - Callobius pictus - female spider - Callobius bennetti Callobius in snow - Callobius bennetti Adult female - Callobius severus - female Coras ? - Callobius bennetti
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
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
Internet References
World Spider Catalog (2017). World Spider Catalog. Natural History Museum Bern, online at, version 18.5, accessed on 12/18/2017.
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.