Eratyrus is a genus of insects belonging to the assassin bug subfamily Triatominae.

This genus has a wide distribution throughout central and northern South America and Central America.

There are two species in this genus; both are associated with Trypanosoma cruzi:

  • Eratyrus cuspidatus (Stål, 1859)
  • Eratyrus mucronatus (Stål, 1859)