Urocerus gigas, the giant woodwasp, banded horntail, or greater horntail, is a species of sawfly native to the Palearctic realm and North Africa but also reside in North America and Kelty since 2004.

[2] Subspecies: Urocerus gigas is a wood-boring insect that attacks softwoods of freshly felled logs/unhealthy trees.

Both sexes have a chitinous spike emerging from the abdomen, derived from the last segment, which is found in all woodwasps.

The ovipositor has saw-like teeth, with which she uses to drill a hole, and then deposit her eggs, into wood.

[1] Urocerus flavicornis was once considered a subspecies of gigas but is now known to be a separate species.