Up at 04h45 this morning to meet Vincent Baudraz (of https://lepido.ch/) and go on yet another christi hunt. I try for christi every year and before today have succeeded on four individual occasions in three different years (two in 2013). The normal routine is to spend the entire day on perilous slopes at serious risk to life and limb and see nothing (no christi, at least). This morning seemed set to follow the usual pattern. Here is Vincent prospecting at one or our earlier sites:

Lunchtime passed with no christi still, then finally, at 14h00 almost on the dot, Vincent spotted a female cruising along the track we were following. Somehow, it evaded his expert net and headed in my direction. It darted left - I lunged left - then right and up high over my right shoulder, and with a truly miraculous stroke of luck I leapt up and caught it with a backhand. Soon after, we were both photographing her, before she flew off to continue laying her eggs for the next generation, in two years' time. Soon after that, Vincent spotted a probable male, but that one evaded both of us, then not long after that I caught a second female - smaller, and with reduced markings - for more photos before she too headed off to do her stuff.
Both have some wing damage, doubtless due to diving deep into sheep's fescue, the foodplant, to lay. Here are the two of them, in order of capture:
Female 1

(in her observation box)

(poor underside out of the box)

(first glimpse of the upperside, before up and away ...)
Female 2



We saw plenty else besides, including a remarkable albino false heath fritillary, but I haven't had time to process the photos yet. For christi, I couldn't wait. Things don't get much better than this!
Guy