Epiphron has a number of widely separated populations across Europe, each with a clearly different form. Lafranchis says it is widespread and abundant in France in the Alpes and Pyrénées, but this has not been my experience, as I have seen it only rarely in France, although more regularly in the Valais in Switzerland.

It has a habit of settling low in grassy areas, where it can be difficult top photograph.

observations

a male (?) of the form aetheria. This is indicated by the rather ill-defined red upf post-discal band which is slightly constricted in the middle at s3, the pin-prick blind ocelli and the absence of any ocellus in s6. The hindwing is clearly angled and the red band quite wide, both of which would suggest female, even though I am fairly sure 23052 is a male based on body length and shape.

a female of the form aetheria. The clues to it being female are the wide upf post-discal band, the minute blind ocelli in s2-5 (albeit not as large as I would have expected for a female), and the slightly angled hindwing at s3. The slight but just-visible body shape suggests female.

this is, I believe, the eastern Pyrenean form fauveaui with the red upf post-discal band reduced, especially in s3, and larger (blind) ocelli than the other forms. The upf ocellus in s3 seems smaller and very isolated, more so than I would have expected from the T&L illustration of fauveaui, but this may just be normal variation. It did look passingly like a False Dewy Ringlet (E. sthennyo) (given that I had never seen either epiphron or sthennyo before this) although the post-discal red upf band is extending into s6 and the ocelli don’t look close enough to the margins for sthennyo.