Brimstone, but no fire

On sunny days, the butterflies still come out, like this one did a few days ago:

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/800s}

It is a brimstone (Gonepteryx rhamni), citroenvlinder in Dutch.

Here are some more photos of this species; the males are Very Yellow, the females are both greener and paler.

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/1000s}

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/500s}

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/800s}

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/2000s}

^{Olympus Stylus 1s, 300mm, ISO100, f5.6, 1/640s}

Thanks for watching!