Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Ptinus fur - Whitemarked Spider Beetle

In the firewood stack - Ptinus fur - female Meat Beetle 1 - Ptinus fur Ptinidae, dorsal - Ptinus fur Beetle - Ptinus fur Spider beetle? - Ptinus fur Bug - Ptinus fur Hairy Spider Beetle - Ptinus fur - female Hairy Spider Beetle - Ptinus fur - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
Superfamily Bostrichoidea (Carpet, Powder-post and Death-watch Beetles)
Family Ptinidae (Death-watch and Spider Beetles)
Subfamily Ptininae (Spider Beetles)
Tribe Ptinini
Genus Ptinus
No Taxon (subgenus Ptinus)
Species fur (Whitemarked Spider Beetle)
Explanation of Names
Ptinus fur (Linnaeus 1758)
♂ 2.1–3.4 mm, ♀ 2.7–4.0 mm(1)
Two tufts of yellowish setae on the pronotal disc crests are distinctive(2)
Thoroughly described (and male genitalia figured) in(3)
Cosmopolitan, Holarctic. Adventive in North America, Asia, New Zealand(2); in NA, across the continent north to NF-AK, south to PA-OH-CA(4)(1)
homes, warehouses, granaries, museums(3)
Dried and decaying organic materials, including insect specimens, wasp combs, feathers, animal skins, stuffed birds, dried herbaria plants, seeds and grains, and foodstuffs(3)
one of the most commonly reported ptinids(2)
earliest record in our area: NF ~1620-70(5)
Works Cited
1.Death-watch and spider beetles of Wisconsin—Coleoptera: Ptinidae
Arango, R.A. and D.K. Young. 2012. General Technical Report FPL-GTR-209. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory.
2.Beetles associated with stored products in Canada: An identification guide
Bousquet Y. 1990. Research Branch Agriculture Canada, Publication 1837.
3.The Ptinidae of economic importance
Hinton, H.E. 1941. Bulletin of Economic Research 31: 331-381.
4.Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition
Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.
5.The Derodontidae, Dermestidae, Bostrichidae, and Anobiidae of the Maritime Provinces of Canada (Coleoptera: Bostrichiformia)
C.J. Majka. 2007. Zootaxa 1573: 1–38.