Which game in the "Monster Hunter" series introduced the "Insect Glaive" weapon?

The Monster Hunter series introduced the Insect Glaive weapon in Monster Hunter 4. This weapon offers a unique playstyle combining fast-paced, aerial combat with the ability to control and command a Kinsect companion. It added a new dimension to the gameplay and allowed players to perform acrobatic moves, target specific body parts of monsters, and extract essence for various buffs, making it a popular choice among hunters seeking versatility and agility in their playstyle.