Assassin bugs have powerful bites which are very acidic.
|Reduvius, a typical assassin bug|
They are almost all terrestrial ambush predators. Most members of the family are easy to recognise: they have a relatively narrow neck, sturdy build and formidable curved proboscis. Large specimens should be handled with care, if at all, because they may defend themselves with a very painful stab from the proboscis.
- There are some blood-sucking ectoparasites in the subfamily Triatominae.