Cotoneaster コトネアスター

Japanese follows English. 英語の後に日本語が続きます。

I first thought they were Spiraea thunbergii but the leaf shape is different. I googled it and found they're Cotoneaster. But not only that, I also found two inchworms (2nd and 3rd photos) on the flowers. Spring is for not only plants but bugs, too!!

Cotoneaster　コトネアスター

An inchworm on cotoneaster　コトネアスターと尺取虫