The Eastern Tiger Swallowtail Caterpillar (IMAGE) Cell Press Caption The Eastern Tiger Swallowtail (Papilio glaucus) caterpillar with fully everted osmeterium is pictured from Bradford County, Fla. Credit Edith Smith (Shady Oak Butterfly Farm) Usage Restrictions Credit Required. 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.