Tremex columba, head of larva.
John B. Smith Economic Entomology (Philadelphia and London: J.B. Lippincott Co, 1896)
TIFF (full resolution)
2400×1565, 719.2 KiB
Large GIF
1024×667, 100.5 KiB
Medium GIF
640×417, 50.3 KiB
Small GIF
320×208, 20.9 KiB