Spider beetles make up the subfamily Ptininae, in the family Ptinidae.

[1][2][3][4][5] Spider beetles have round bodies with long, slender legs.

They are generally 1–5 mm long, and reproduce at the rate of two to three generations per year.

[4] The larvae and the adults of most spider beetles are scavengers on dry plant or animal matter, but some species are known to be myrmecophilic, or ant affiliates.

[5][2][3][4][1] These genera belong to the subfamily Ptininae:[6][7] Data sources: i = ITIS,[8] c = Catalogue of Life,[9] g = GBIF,[10] b = Bugguide.net[1]