Key to the subspecies of Satyrium hallackii
| 1a | Spurs 7-14 mm long | subsp. hallackii |
| 1b | Spurs 15-31 mm long | subsp. ocellatum |
| 1c | Spurs 33-65 mm long | subsp. ballii |
World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 10.01.2015
