101Leafy researched the games.
Wing Bow III

The Hypnocatrice wings add Sleep Add ability, knocking prey out like a light.
| Class | Bow |
|---|---|
| Rarity | 9 |
| Attack | 312 |
| Slots | 1 |
| Price | 53,450z |
Upgrades
| Upgraded from | Wing Bow II |
|---|---|
| Upgrades into | Wing Bow IV |
Can also be made new at the smithy.
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 798.
Materials
OrangeHypnoPelt+ ×8, Hypno Claw+ ×6, Hypno Bezoar ×1, Lucky Kut-Ku Ear ×3