The Female Phasmid is one of the 24 Golden Bugs found in The Legend of Zelda: Twilight Princess. Like most female insects, it is somewhat pink in color. Giving this bug to Agitha will reward Link with a Rupee prize.
The Female Phasmid is located around the northern end on the west (Wii) wall of the Bridge of Eldin. Link can either use his Boomerang to bring the Golden Bug to him or alternatively, he can wait until he has the Clawshots to pull himself to said female insect.