Blacklegged Tick (IMAGE) Entomological Society of America Caption This is a blacklegged tick (<i>Ixodes scapularis</i>), one of the main vectors of Lyme disease. Credit Gary Alpert, Harvard University, Bugwood.org. Usage Restrictions Must credit Gary Alpert, Harvard University, Bugwood.org. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.