Protoanisolarva juarezi (IMAGE) Spanish National Research Council (CSIC) Caption Protoanisolarva juarezi, the gnat larva representing the oldest known dipteran, 247 million years old, found in Mallorca, Spain Credit CN-IGME CSIC Usage Restrictions You are free to share the material. Attribution is required. License Original 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.