Phormictopus sp 'Green Femur Golden Carapace' Tarantula *RARE*Phormictopus sp 'Green femur golden carapace' Tarantula for sale Perhaps the most sought after of the Phormictopus "color forms" this species of birdeater is a stunner. This species gets green femurs and a golden carapace in both males and females! This amazing species of Phorimictopus starts green as babies, then turns purple in the juvenile stage and then as an adult turns green & gold (when they are about 7" across). It is so fun to raise these, as