Posted on 22 June 20188 June 2018 by David Comma butterfly caterpillar on a railing Caterpillar crawling along the top of the handrail of the bridge at Compton Park pool. If it grows up, it will become a comma butterfly. The head is at the orange end. Post navigationPrevious post: Southern hawker dragonfly ovipositing, Baggeridge Country ParkNext post: Watchful heron on fallen tree, West Park