Fig. 6. Visualization of the small inward turn of elytra at the very beginning of opening in Melolontha hippocastani. Real images with tripods from still frames. (A) Initial closed position of elytra; (B) intermediate position; (C,D) final position of mini-opening. Negative images of white arms at the start position (now black) are overlaid onto B and C. Straight body orientation.