Hyllus janthinus (♂) (C. L. KOCH, 1846)
synonym of
Hyllus diardi (♂,♀) (WALCKENAER, 1837) [XIONG, LIU & ZHANG, 2017: 24]
combinations
Plexippus janthinus (♂) C. L. KOCH, 1846: 97
Attus janthinus: (♂) WALCKENAER 1847: 424
Plexippus ianthinus: THORELL 1868: 310 (lapsus)
Hyllus janthinus: THORELL 1890: 13
external sources for more info