assassin bug

noun
1.
any of numerous bugs of the family Reduviidae, feeding chiefly on other insects but including some forms that are bloodsucking parasites of mammals.
Also called reduviid.
Origin
1890-95
British Dictionary definitions for assassin bug

assassin bug

noun
1.
any long-legged predatory, often blood-sucking, insect of the heteropterous family Reduviidae
assassin bug in Medicine

assassin bug as·sas·sin bug (ə-sās'ĭn)
n.
A predatory bug of the family Reduviidae having powerful piercing mouthparts that inflict irritating, painful bites on humans.