Article · Wikipedia archive · Last revised Jun 11, 2026

Osiris blue

The Osiris blue is a butterfly in the family Lycaenidae. It is found in South Europe, Asia Minor, southern Siberia, the Alay Mountains, Tian-Shan, Dzhungarsky Alatau, the Altai Region, the Sayan Mountains, Lake Baikal and Mongolia. It is often confused with the small blue, a closely related species.

Last revised
Jun 11, 2026
Read time
≈ 1 min
Length
246 w
Citations
1
Source
Osiris blue
Female Osiris blue
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Lepidoptera
Family: Lycaenidae
Genus: Cupido
Species:
C. osiris
Binomial name
Cupido osiris
Meigen, 1829
Synonyms
  • Polyommatus sebrus (Boisduval, 1832)

The Osiris blue (Cupido osiris) is a butterfly in the family Lycaenidae. It is found in South Europe, Asia Minor, southern Siberia, the Alay Mountains, Tian-Shan, Dzhungarsky Alatau, the Altai Region, the Sayan Mountains, Lake Baikal and Mongolia. It is often confused with the small blue, a closely related species.

The larvae feed on Onobrychis and Leguminosae species.

Description from Seitz

L. sebrus Bdv. (82 c). Above dull violet-blue (male) or black-brown (female). with the markings of the underside feebly shining through, narrow black margin and white fringes; beneath light ashy grey, the base dusted with blue, the ocelli and the median spot being very delicate. In the Alps, locally plentiful, southwards to Italy, south-eastwards to Asia Minor and eastwards to the Altai. Specimens with the ocelli prolonged occur also in this species, as proved by a fine specimen in Courvoisier's collection: ab. elongata Courv. i. l. — Larva on Onobrychis and Orobus, until April and again in June. The butterflies in the mountains, sporadic, in May and again from the end of June onwards.1

References

References

  1. Adalbert Seitz in Seitz, A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren)
External links