This year’s butterfly migration from Arabia to Europe via Israel is probably the largest ever seen in Israel. The unusually wet winter has promoted the growth of plants that feed billions of new “painted lady” butterflies, also known as the “plain tiger” or “African Queen”. Viewing until mid-May.
https://www.greenprophet.com/2019/03/butterflies-invade-israel-in-a-rare-migratory-swarm/
https://www.israel21c.org/millions-of-butterflies-flutter-through-israel-on-purim/