Upgrading your Palico Support Moves is important and often requires capturing weird bugs. For the quest, A Gutsy Move, your Palico will need you to catch a Giant Vigorwasp. You’ve probably found the smaller version, but these larger ones can be extremely difficult to find, especially if you don’t know their lifecycle.

Giant vigorwasps can be found in the Windward Plains, the Scarlet Forest, or the Ruins of Wyveria. They seem to only spawn during a plenty, and do not seem to spawn at all during a fallow.