26 May. As a cannabilistic species there is at most one larva per plant! Then they proceed to eat the bulbils! The eaten parts are white. Here is a full grown caterpillar, about an inch long.

18th May - Orange-tip larva finishing off Coralroot pods

In the Spring exuberance of a Chilterns wood, a female Orange-tip has laid her orange egg, near the bottom of the image. The plant is the beautiful Coralroot, Cardamine bulbifera, for which the area is a UK hotspot, for this rare ancient woodland plant.

Moths book new version