Cratichneumon is a genus of the parasitic wasp that belongs to the family Ichneumonidae. It is native to North America but mostly in the eastern United States and Canada.
It is one of the most common and diverse genus of ichneumonine genera in the nearctic realm. They have a considerable range of size to the point where larger species may be confused with Ichneumon and smaller species may be confused with Barichneumon, Melanichneumon, Homotherus, Aoplus, and Crypteffigies.
This genus is diverse including more than 100 species and may be paraphyletic . However there are likely many undescribed species as seen with Claridge et al. (2024) which describes 11 new species within this genus.
Species within this genus include: