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Subfamily Ptininae - Spider Beetles
Classification 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)
Synonyms and other taxonomic changes many workers treat Gibbium and Mezium in a separate subfamily, Gibbiinae (1)
Explanation of Names Ptininae Latreille 1802
Numbers ~70 spp. in 12 genera in our area (2)(3), 15 in Canada (4) (ca. 600 spp. worldwide)
Identification Body constricted between prothorax and elytra, pronotum often with humps, elytra often with shoulders reduced (flightless species). Head not retracted below pronotum, antennae free, filiform, their bases proximate.
illustrated keys & info on species that occur indoors in (4)(3)
Range worldwide and across NA; many spp. associated with stored products easily spread with commerce and have cosmopolitan distribution
Habitat mammal/bird/bee nests, dry carrion, tree holes; several species occur in homes, granaries, mills, warehouses (4)
Food Dry plant and animal matter (a few are wood-borers as larvae)
Print References Arango, R.A. and D.K. Young. 2012. Death-watch and spider beetles of Wisconsin—Coleoptera: Ptinidae. General Technical Report FPL-GTR-209. Madison, WI: USDA, Forest Service, Forest Products Laboratory. (6)
Philips T.K. (2000) Phylogenetic analysis of the New World Ptininae (Coleoptera: Bostrichoidea). Systematic Entomology 25: 235-262.
Works Cited 2. | American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL. |  |
6. | 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. | |
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