Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 86. (Budapest 1994)

Bálint, Zs. ; Johnson, K.: Polyommatine lycaenids of the oreal biome in the Neotropics, part II: The Itylos section (Lepidoptera: Lycaenidae, Polyommatinae)

Figs 17-24. Itylos spp. 17 = /. titicaca, male, dorsal, Ancash, Pern (BMNH), 18 = ditto, ventral, 19 = /. titicaca (WEYMER), male, dorsal, Ancash, Pern (BMNH), 20 = ditto, ventral, 21 = /. pnin BÁLINT, Holotype (BMNH), 22 = ditto, ventral, 23 = /. fumosus (BALLETTO), Holotype (Paratype of /. luzhin BÁLINT, BMNH), 24 = ditto, ventral