Crystal skipper Crystal skipper Atrytonopsis quinteri, the crystal skipper is a newly described butterfly (family Hesperiidae) that is found only along a 30-mile (50 km) stretch of barrier islands in North Carolina. The skipper was first discovered in 1978 and the paper describing it as a full species was published in 2015. The crystal skipper is endemic to Bogue Banks and Bear Island in North Carolina, USA. Bogue Banks is approximately 25 miles long and Bear Island is about 3.5 miles long. The skipper is also found on several human-made dredge spoil islands within the vicinity of these two natural barrier islands.
Lulworth Cove made a gap in the Portland and Purbeck limestone here, as well as a small arch. The sea has made its way through to the Wealdon clays and begun eroding them. The clay shows obvious signs of slumping, and is eroding very rapidly. Stair Hole shows one of the best examples of limestone folding in the world, caused by movements in the Earth's crust tectonics millions of years ago. Folding can also be seen at nearby Durdle Door and at Lulworth cove itself. Lulworth Cove Lulworth Cove is a cove near the village of West Lulworth, on the Jurassic Coast