A very common butterfly, almost certainly the most common in the UK, and perhaps in Europe too, although the Marbled White (Melanargia galathea) might claim that distinction in southern France. The male has quite a dull brown upperside with a single apical ocellus, although the female has a strong orange upf post-discal band and greater contrast on the unh.

observations

a male, the dark sex brand clearly visible.

a female, nicely illustrating the extended orange patches of the form hispulla.

a male, showing that even this common butterfly can be very appealing.

a male, nice bright orange.

a female, based on the contrast across the unh discal line and the enlarged unf ocellus.

this has a strong discal line externally yellow-orange around the edge of the cell, with a dark submarginal unf band and a double ocellus. This is, I think, the form hispulla which occurs in Provence.

a female of the nominate form.

this is a quick snap of a male as it opened its wings momentarily. It was not behaving in the same way as other jurtina in the vicinity, hence this shot. The sex brand looked conceivably like the sex brand of  the Oriental Meadow Brown (Hyponephele lupina). I subsequently discovered that I was in a known locality for lupina. The larval hostplant Aegylops geniculata was growing nearby in some profusion. 21163 is an underside shot, not the same butterfly as 21107.

following on from the comments on 21107, this underside shot shows the extended hindwing and scalloping indicative of lupina, although perhaps not well developed enough to be indicative. It was flying at a time that was two weeks too early for lycaon. However, the small ocelli are almost conclusive evidence of jurtina rather than lupina. Having visited the UK Natural History Museum archives and viewed the extensive specimens of lupina, none had any suggestion of an unh ocellus, so 21163 is 100% jurtina.