A. proylei is a newly introduced oak tasar in north eastern states of India. It is an interspecific hybrid between Antheraea roylei Moore of India and its Chinese counterpart Antheraea pernyi Gm. A. proyeli J is being used for production of Oak tasar silk. The present book provides detailed information about indoor rearing of temperate Oak tasar silkworm Antheraea proyeli J. Several plants were screened to find out the suitable larval food plant. The larvae of A. proylei J. feed greedily on the foliage of Terminalia catappa. The present study provides information about life cycle stages, morphology of larva and adult. The study also highlights cocoon characters obtained from the rearing of three different seasons.