
Hautes Alpes, France, July 2013

Jura, France, July 2006
Field notes and information
This taxon is generally now considered to be a high altitude form of the alcon blue, M. alcon. I've retained a separate page for it for historical reasons.
Identification & Similar species: All notes on the alcon blue M. alcon apply to this taxon.
Distribution & Flight: N Spain, southeast France and eastwards. A single brood in June/ July.
Habitat & Behaviour: Fairly dry areas at lower levels and damp meadows amongst trees at alpine levels. Eggs are laid, principally, on cross-leaved gentian, Gentiana cruciata.

Jura, France, July 2006


Vaud, Switzerland, June 2022

Hautes Alpes, France, August 2012
Eggs on cross leaved gentian.

Jura, France, July 2006



Vaud, Switzerland, June 2015


Vaud, Switzerland, June 2015

Vaud, Switzerland, July 2008

Jura, France, July 2006

Jura, France, July 2006



Vaud, Switzerland, July 2020

Vaud, Switzerland, July 2020


Vaud, Switzerland, July 2008

Vaud, Switzerland, June 2022

Vaud, Switzerland, June 2022