After another stop at Jeff’s house to use the facilities and retrieve our cars, we traveled to Bishop Davis Drive in a long procession that must have bewildered the locals. Bishop Davis becomes a dirt road once it leaves the village behind, and eventually comes to a large track entering Torbolton Forest. This is a prime spot to look for the regionally uncommon Olympia Marble, a beautiful butterfly related to the more familiar Mustard and Cabbage Whites.
The Olympia Marble prefers open sandy or barren areas where rock cress, its larval host plant, occurs. With the beautiful green veining on the underside of its wings, it is unmistakable and definitely worth searching for.