Argentine Ant (IMAGE) University of California - Riverside Caption Most insects, such as the Argentine ant seen here, are covered with a thin layer of hydrocarbon molecules as a waterproofing barrier. Credit Mike Lewis, CISR, UC Riverside. Usage Restrictions None 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.