Diaperis is a genus of darkling beetle with species known from Asia, Europe, and the Americas. Some species were formerly placed in the genus Allophasia. A species described in this genus is now Serrania viridula (Zayas, 1989).

Species in the genus include:

• Diaperis bifida Triplehorn and Brendell
• Diaperis boleti (Linnaeus, 1758)
  • Diaperis boleti bipustulata Laporte & Brullé, 1831
• Diaperis californica Blaisdell, 1929
• Diaperis coccinea Laporte de Castelnau, 1840
• Diaperis fryi (Pascoe)
• Diaperis lewisi Bates
  • Diaperis lewisi intersecta Gebien, 1913
• Diaperis maculata Olivier 1791
• Diaperis marseuli (Bates)
• Diaperis nigronotata Pic 1926
• Diaperis rufipes Horn, 1870

...