A small butterfly common in southern Europe, North Africa, and the Middle East. In Israel it can be found in the eastern mountainous region (from the Judean Hills, Samaria to the Golan Heights and Mount Hermon). It flies in spring in the months of April and May. Its wingspan is about 25 mm. It produces one generation per year.
The female lays her eggs on the leaves of bulbous oatgrass and other perennial grasses. The egg is cream-colored and oval in shape.
The larva hatching from the egg is yellowish and its head is black. After hatching it enters diapause until the following spring. For protection, it lives inside a folded leaf that it creates. As it grows, its color becomes green with light stripes along its length. When it reaches a size of about 25 mm it pupates, usually on the leaf.
The pupa is of the girdle type. Its color is light green and it has cream-colored longitudinal stripes. Its length is about 20 mm. At the front of the pupa there is a pointed projection. Its stage lasts about two to three weeks.

Previous name: הספרית הבלוטה