Species Ptinus variegatus
A Catalog of the Coleoptera of America North of Mexico. Family: Anobiidae.By White, R.E.
USDA-ARS, Washington, DC. xi + 59 pp., 1982
This family consists of about 150 genera and more than 1,600 species in the world.
Included in this catalog are 52 genera and 332 species.
However, Ptininae are not
Larvae of most of the species for which the habits are known bore into dead hardwoods and softwoods. Larvae of several species feed in various kinds of fungi. Some species feed in cones of conifers, some in twigs or vines, others in seeds, some in plant stems, a few in bark of various trees, and a very few have been bred from galls.
Death-watch and spider beetles of Wisconsin—Coleoptera: PtinidaeBy Arango, R.A. and D.K. Young
General Technical Report FPL-GTR-209. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2012
PDF version http://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr209.pdf
Great publication on Anobiidae. Should be very useful for the northeastern fauna.
New Coleoptera records from New Brunswick, Canada: Dermestidae, Endecatomidae, Bostrichidae, and PtinidaeBy Webster R.P., Sweeney J.D., Demerchant I., Turgeon M.
Zookeys 179: 127-139, 2012
Synopsis of adventive species of Coleoptera (Insecta) recorded from Canada. Part 4: Scarabaeoidea... [through Cleroidea]By Klimaszewski J, Langor D, Smith A, Hoebeke E, Davies A, Pelletier G, Douglas HB, Webster RP, Bourdon C, Borowiec L, Scudder GGE
Pensoft Series Faunistica 116: 1-215, 2017
Full title: Synopsis of adventive species of Coleoptera (Insecta) recorded from Canada. Part 4: Scarabaeoidea, Scirtoidea, Buprestoidea, Byrrhoidea, Elateroidea, Derodontoidea, Bostrichoidea, and Cleroidea
Review of the American Corylophidae, Cryptophagidae, Tritomidae and Dermestidae, with other studiesBy T. L. Casey
New York Entomological Society, 1900
Journal of the New York Entomological Society, 8
(2): 51-172, 1900