Scanning electron microscope images of a last instar larva of Spialia sertorius from Losar de la Vera, Cáceres, Central Spain. 54. Head capsule and collar. 55, 56. Detail of the head capsule setae and sculpture. 57. Cuticular formations on thoracic and abdominal segments. 58. Detail with different types of subdorsal and lateral setae on the first thoracic segment: long and short setae with pointed tips. 59. Detail of a barrel-like formation and the cuticular sculpture. 60 Last abdominal spiracle. 61. Last abdominal segments with the anal plate and setae with pointed tips and rounded bases.