Warning: All Assassin Bugs can administer a painful bite with their sharp proboscis, or rostrum. As infection and an allergic reaction to their venom are distinct possibilities, they should only be kept by well-experienced adults. These and other species can also spray their venom, so protective eyewear is a must. All Assassin Bugs, including the US natives, should be handled only with forceps. Assassin bugs Captive breed The Reduviidae are a large cosmopolitan family of the order Hemiptera (true bugs). They are slightly unusual overall, but very common among the Hemiptera because almost all are terrestrial ambush predators (most other predatory Hemiptera are aquatic). The main examples of nonpredatory Reduviidae are some blood-sucking ectoparasites in the subfamily Triatominae. Though spectacular exceptions are known, most members of the family are fairly easily recognizable; they have a relatively narrow neck, sturdy build, and formidable curved proboscis (sometimes called a rostrum). Large specimens should be handled with caution, if at all, because they sometimes defend themselves with a very painful stab from the proboscis.