Scanning Electron Microscopy Images (IMAGE) Ehime University Caption Scanning Electron Microscopy images of a last instar of Toramus quadriguttatus and its exuviae. The modified hook-like setae are indicated by arrows and green-colored. The close-up image of connecting part of exuviae of third and second instars shows the modified setae are broken, detached and mostly exposed, while one of second and first instars shows the modified setae deeply inserted. The relevant setae of exuvia of 1st instar are not modified (lower right). Credit The Coleopterists Society Usage Restrictions Please get copyright permission 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.