Morphology of C. pampeanus first (A, B) and last (C-L) larval instars under scanning electron microscopy. A general aspect, lateral view; B, buccal apparatus, anterior C, head, latero-dorsal D stemmata, lateral; E, left antenna, lateral F maxilla and labium, antero-lateral G labrum and clypeus, latero-dorsal H thorax, latero-ventral I meso- and metathorax in detail, with aligned setae of different lengths, antero-dorsal J second and third abdominal segments, showing tergal calli, latero-dorsal K eight abdominal segment in detail, showing aligned secondary setae (arrows) and spiracle, lateral L last abdominal segments, ventral. Scale bars: 100 µm (A, F, G); 10 µm (B); 200 µm (C); 50 µm (D, E, K); 250 µm (J); 1 mm (H, L); 0.5 mm (I).