Spider beetles are the approximately 500 species of beetles in the subfamily Ptininae of the family Anobiidae. They are sometimes considered a family in their own right, which is then called Ptinidae. Spider beetles have round bodies with long, slender legs, and lack wings. They are generally 1–5 mm long. Both the larvae and the adults are scavengers. They reproduce at the rate of two to three generations per year.
About 12 genera are recognised :
- Gibbium Scopoli, 1777
- Gnostus Westwood, 1855
- Meziomorphum Péringuey, 1886
- Mezium Curtis, 1828
- Niptinus Fall, 1905
- Niptus Boieldieu, 1856
- Pitnus Gorham, 1883
- Pseudeurostus Heyden, 1906
- Ptinus Linnaeus, 1766
- Sphaericus Wollaston, 1854
- Tipnus Thomson, 1863
- Trigonogenius Solier, 1849
|Wikimedia Commons has media related to Ptinidae.|
- "Spider beetle". Iowa State University. 2005-07-14.
- Steve Jacobs (October 2006). "Spider beetles". Pennsylvania State University.
- "Spider beetle". Encyclopædia Britannica.
- Ptinidae Photo page
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