The Persian squirrel (Scuirus anomalus) has a long furry tail, which is longer than half of the body, and lives in the Zagros forest. It is distributed in the west and northeast of Asia. In the summer 2011 a Persian squirrel with signs of hair loss and itch in head and tail was referred to the veterinary clinic. There were arthropods in the lesion in the first survey. Many of these parasites were collected and were sent to Parasitology Laboratory of Science and Research University in Tehran. Samples were processed and were identified according to lices diagnostic keys using a light microscope. Lice that were sent to the national parasitology museum were identified as Polyplax sp. too.