Majka, C.G., T.K. Philips, and C. Sheffield. 2007. Ptinus sexpunctatus Panzer (Coleoptera: Anobiidae, Ptininae) newly recorded in North America. Entomolgical News 118: 73-76.
Abstract: The Palearctic spider beetle, Ptinus sexpunctatus Panzer (Anobiidae: Ptininae), is newly recorded in North America from collections in Nova Scotia, Canada, and Pennsylvania and Utah in the United States. It is also newly recorded in association with the native blue orchard mason bee, Osmia lignaria Say (Hymenoptera: Megachilidae). Its presence on the continent is briefly discussed in the context of mechanisms of introduction of invertebrates to North America.