Green Flash (Artipe eryx, 绿灰蝶). Female.
The hot dry season has started. Yesterday I walked in Wangling park, which was littered with fallen scarab beetles and stunned eastern horse cicadas; the latter I think were affected by gardeners watering the trees more than the heat. In the woods there were plenty of live insects to see: I was particularly taken by this butterfly, which I don't see very often, although in late fall and winter one often comes across gardenia fruits with holes burrowed into them by their larvae.