kissing bug

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. See conenose.

Century Dictionary and Cyclopedia

1. n. Any one of several species of predatory bugs of the family Reduviidæ. Applied notably to Opsicoetes personatus, Melanolestes picipes, Rasahus biguttatus, and Conorhinus sanguisugus. The name kissing-bug originated in the newspapers in June, 1899, many persons being bitten that, summer and often on the lip.

Wiktionary

1. n. a bug from the family Hemiptera, that causes sores to the human body

GNU Webster's 1913

1. (Zoöl.), United States Any one of several species of blood-sucking, venomous Hemiptera that sometimes bite the lip or other parts of the human body, causing painful sores, as the cone-nose (Conorhinus sanguisuga).

WordNet 3.0

1. n. large bloodsucking bug