RD/KP20-JP033 夢中のポリニア Muchuu no Polynea (Delirium Polynea)
Level 2 LIGHT Insect Effect Monster
ATK 800
DEF 1200
【REQUIREMENT】 If you control another face-up LIGHT Insect monster, you can change this Attack Position card to face-up Defense Position.
【EFFECT】 Choose 1 Level 3 or higher face-up monster on the opponent’s field and decrease its Level by 2 until the end of the turn, then, you can choose 1 face-up monster on your opponent’s field and change its Type to Insect until the end of the opponent’s next turn.

Note: I believe this card refers to the Polyura Butterfly subgenus?